Clean up throne seen in a mess during banquet (7,4,4)

I believe the answer is:

feather ones nest

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Other definitions for feather ones nest that I've seen before include "Look after number one" , "become richer" , "make money dishonestly?" , "Appropriate stuff" , "How one may get down" .)

I've seen this clue in The Telegraph.

Want a hint initially instead of a full solution? Install my app