Create chaos in a card game (6)
I believe the answer is:
ecarte
'card game' is the definition.
(I know that ecarte is a type of card game)
'create chaos' is the wordplay.
'chaos' indicates an anagram.
'create' with letters rearranged gives 'ECARTE'.
'in a' is the link.
(Other definitions for ecarte that I've seen before include "Create (anag) -- card game" , "position in ballet company" , "Thirty-two-card game for two" , "Card game for two" .)