Type of bridge game (7)
I believe the answer is:
pontoon
I believe this clue is a double definition.
'type of bridge' is the first definition.
(I've seen this before)
'game' is the second definition.
(I've seen this before)
(Other definitions for pontoon that I've seen before include "Floating bridge support" , "Card game; floating support" , "Half of 1D [GAME OR BIRD]" , "Card game - type of bridge" , "variety of bridge" .)