Corn holder (4)
I believe the answer is:
crib
'corn holder' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for crib that I've seen before include "Cot; plagiarize" , "Child's bed - copy" , "Manger; cheat by copying" , "Cheat by copying - card game" , "Lift" .)