Copy a card game (4)
I believe the answer is:
crib
This clue is a double definition.
'copy' is the first definition.
(thesaurus)
'a card game' is the second definition.
(crib is a kind of card game)
(Other definitions for crib that I've seen before include "Plagiarise - cattle stall" , "Nativity centrepiece" , "Cot - cattle stall - copy during an exam" , "Container for animal fodder" , "which animals inhabit" .)