Used to do Android dev - if you're referring to CLEAN as in the specific architecture I believe it's way overkill for mobile apps unless you're doing something truly complex.

Most apps simply present content from an API and you can simply use an MVP/MVC architecture.

Imo the only libraries you'd need are for http (retrofit), possibly image loading (glide), and caching (disk lru cache).

You can also ask on Reddit.com/r/androiddev - lots of great people there.

Fwiw, I've mostly moved to flutter for mobile but it is definitely not feature complete.