Post Author: Add help text linking to profile screen

packages/editor/CHANGELOG.md

@@ -8,6 +8,7 @@
 
 ### Enhancements
 
+-   Post Author: Add help text to the author selector linking to the profile screen where the display name can be edited ([#17364](https://github.com/WordPress/gutenberg/issues/17364)).
 -   Commands: Add a command palette entry that opens the current post on the front end once it is published, labelled with the post type's `view_item` label ([#66720](https://github.com/WordPress/gutenberg/pull/66720)).
 -   Pre-publish panel: Remove the "Visibility" and "Publish" headings that repeated the title of the panel containing them. The publish date's reset action, which lived in the removed header, becomes a "Reset" button below the date picker, disabled but still focusable while the post is set to publish immediately ([#81806](https://github.com/WordPress/gutenberg/pull/81806)).
 

packages/editor/src/components/post-author/combobox.js

@@ -5,6 +5,7 @@ import { __ } from '@wordpress/i18n';
 import { ComboboxControl } from '@wordpress/components';
 import { store as editorStore } from '../../store';
 import { useAuthorsQuery } from './hook';
+import AuthorHelpText from './help-text';
 
 export default function PostAuthorCombobox() {
 	const [ fieldValue, setFieldValue ] = useState();
@@ -35,6 +36,7 @@ export default function PostAuthorCombobox() {
 			allowReset={ false }
 			hideLabelFromVision
 			isLoading={ isLoading }
+			help={ <AuthorHelpText /> }
 		/>
 	);
 }

packages/editor/src/components/post-author/help-text.js

@@ -0,0 +1,12 @@
+import { createInterpolateElement } from '@wordpress/element';
+import { __ } from '@wordpress/i18n';
+import { Link } from '@wordpress/ui';
+
+export default function AuthorHelpText() {
+	return createInterpolateElement(
+		__( 'You can edit your display name in <a>your profile</a>.' ),
+		{
+			a: <Link href="profile.php" openInNewTab />,
+		}
+	);
+}

packages/editor/src/components/post-author/select.js

@@ -3,6 +3,7 @@ import { useDispatch } from '@wordpress/data';
 import { SelectControl } from '@wordpress/components';
 import { store as editorStore } from '../../store';
 import { useAuthorsQuery } from './hook';
+import AuthorHelpText from './help-text';
 
 export default function PostAuthorSelect() {
 	const { editPost } = useDispatch( editorStore );
@@ -21,6 +22,7 @@ export default function PostAuthorSelect() {
 			onChange={ setAuthorId }
 			value={ authorId }
 			hideLabelFromVision
+			help={ <AuthorHelpText /> }
 		/>
 	);
 }