diff --git a/components/calendar/__tests__/calendar-app.test.tsx b/components/calendar/__tests__/calendar-app.test.tsx
index 323b411a3..24ce2f577 100644
--- a/components/calendar/__tests__/calendar-app.test.tsx
+++ b/components/calendar/__tests__/calendar-app.test.tsx
@@ -352,6 +352,18 @@ describe('CalendarApp event search (CAL-16)', () => {
     expect(await screen.findByText('search.no_results', {}, { timeout: 3000 })).toBeInTheDocument();
   });
 
+  it('offers Clear search when nothing matches, back to the calendar with the cursor in the box', async () => {
+    renderApp();
+    const box = screen.getByRole('searchbox', { name: 'search.title' });
+    fireEvent.change(box, { target: { value: 'zzz' } });
+    await screen.findByText('search.no_results', {}, { timeout: 3000 });
+    const results = screen.getByTestId('calendar-search-results');
+    fireEvent.click(within(results).getByRole('button', { name: 'search.clear' }));
+    expect(box).toHaveValue('');
+    expect(document.activeElement).toBe(box);
+    await waitFor(() => expect(screen.queryByTestId('calendar-search-results')).toBeNull());
+  });
+
   it('is in the command palette', () => {
     render(<><CalendarApp /><PaletteGroups /></>);
     const items = screen.getByTestId('palette').textContent ?? '';
diff --git a/components/calendar/calendar-app.tsx b/components/calendar/calendar-app.tsx
index 7eca930b6..b9d63985b 100644
--- a/components/calendar/calendar-app.tsx
+++ b/components/calendar/calendar-app.tsx
@@ -1795,6 +1795,7 @@ export function CalendarApp({ linkSegments: routeSegments }: CalendarAppProps =
             currentUserEmails={currentUserEmails}
             onSelectEvent={handleSelectEvent}
             onContextMenuEvent={handleContextMenuEvent}
+            onClearSearch={() => { setSearchQuery(""); searchInputRef.current?.focus(); }}
           />
         );
       }
diff --git a/components/calendar/calendar-search.tsx b/components/calendar/calendar-search.tsx
index 283cb8551..a46b9d5e6 100644
--- a/components/calendar/calendar-search.tsx
+++ b/components/calendar/calendar-search.tsx
@@ -6,6 +6,7 @@ import { format } from "date-fns";
 import { Search, X, MapPin, Repeat } from "@/components/icons";
 import { Input } from "@/components/ui/input";
 import { IconButton } from "@/components/ui/icon-button";
+import { Button } from "@/components/ui/button";
 import { EmptyState } from "@/components/ui/empty-state";
 import { Spinner } from "@/components/ui/spinner";
 import { cn } from "@/lib/utils";
@@ -88,11 +89,13 @@ interface CalendarSearchResultsProps {
   currentUserEmails?: string[];
   onSelectEvent: (event: CalendarEvent, anchorRect: DOMRect) => void;
   onContextMenuEvent?: (e: React.MouseEvent, event: CalendarEvent) => void;
+  /** Empties the search box, back to the calendar (R9). */
+  onClearSearch?: () => void;
 }
 
 /** The events a calendar search found, upcoming first, then past ones. */
 export function CalendarSearchResults({
-  query, results, calendars, timeFormat = "24h", currentUserEmails, onSelectEvent, onContextMenuEvent,
+  query, results, calendars, timeFormat = "24h", currentUserEmails, onSelectEvent, onContextMenuEvent, onClearSearch,
 }: CalendarSearchResultsProps) {
   const t = useTranslations("calendar");
   const intlFormatter = useDisplayDateFormatter();
@@ -199,6 +202,11 @@ export function CalendarSearchResults({
           icon={Search}
           title={t("search.no_results", { query: query.trim() })}
           description={t("search.no_results_hint")}
+          actions={onClearSearch && (
+            <Button size="sm" variant="outline" onClick={onClearSearch}>
+              {t("search.clear")}
+            </Button>
+          )}
         />
       )}
       {section("calendar-search-upcoming", t("search.upcoming"), upcoming)}