Soft feathers (4)
I believe the answer is:
down
'soft feathers' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for down that I've seen before include "Feathers or hair" , "Not working (computer)" , "Consume (drink), sad" , "Unhappy; soft feathers" , "like the other set of clues" .)