Manger (4)
I believe the answer is:
crib
'manger' is the definition.
(both can mean a container for animal food)
This is all the clue.
(Other definitions for crib that I've seen before include "Child's bed - copy" , "Plagiarise - cot" , "Cheat by copying - card game" , "Container for animal fodder" , "Baby's bed" .)