Card game associated with bridge (7)
I believe the answer is:
pontoon
I believe this clue is a double definition.
'card game' is the first definition.
(pontoon is a card game)
'bridge' is the second definition.
(pontoon is a type of bridge)
'associated with' acts as a link.
(Other definitions for pontoon that I've seen before include "Half of 1D [GAME OR BIRD]" , "Lighter" , "'Flat-bottomed boat, card game and Mayo town (7)'" , "Floating bridge support" , "Card-game" .)