Earlier today Apple officially released the public version of iOS 11.3. Among other new features, Apple Music subscribers received a Video Clips section.
And now Apple has released the iTunes 12.7.4 update with the same new tab. The update may also contain bug fixes, but the main change is the new section with clips.
Here is a very brief postscript Apple to the update:
'ITunes now has a new video clips tab for Apple Music. Find new videos and watch them in exclusive playlists. '
The Video Clips section is located on the Overview tab. New clips will be uploaded regularly and exclusive videos will be released in the section. There are also categories by genre, playlists, etc.
Apple announced its intention to add clips to Apple Music late last year.
iTunes 12.7.4 is available now. You can download and install the new version from the Updates tab in Mac App Store.