docs: add example for clear

docs/1.getting-started/6.data-fetching.md

@@ -295,6 +295,21 @@ The `execute` function is an alias for `refresh` that works in exactly the same
 To globally refetch or invalidate cached data, see [`clearNuxtData`](/docs/api/utils/clear-nuxt-data) and [`refreshNuxtData`](/docs/api/utils/refresh-nuxt-data).
 ::
 
+#### Clear
+
+If you want to clear the data provided, for whatever reason, without needing to know the specific key to pass to `clearNuxtData`, you can use the `clear` function provided by the composables.
+
+```vue twoslash
+<script setup lang="ts">
+const { data, clear } = await useFetch('/api/users')
+
+const route = useRoute()
+watch(() => route.path, (path) => {
+  if (path === '/') clear()
+})
+</script>
+```
+
 #### Watch
 
 To re-run your fetching function each time other reactive values in your application change, use the `watch` option. You can use it for one or multiple _watchable_ elements.