Animal hunted and killed for food (4)
I believe the answer is:
prey
'animal hunted and killed for food' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for prey that I've seen before include "Hunter's quarry" , "Animal sought as food" , "Victim, quarry" , "Animal's victim" , "Quarry, fair game" .)