Feathered friend (4)
I believe the answer is:
bird
'feathered friend' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for bird that I've seen before include "Prison sentence - hawk, perhaps" , "Feathered flyer" , "Charlie "___" Parker - time inside" , "porridge" , "Egg-laying vertebrate" .)