Get cross in game (8,6)
I believe the answer is:
Here is my best explanation:
'game' is the definition.
(contract bridge is a kind of game)
'get cross' is the subsidiary indication.
'get' becomes 'contract' ('contract' can be a synonym of 'get'**).
'cross' becomes 'bridge' (bridging is a kind of crossing).
'in' is the link.
(Other definitions for contract bridge that I've seen before include "Wherein four deck hands", "that requires two pairs of hands", "Game", "Instruction for nose job, perhaps", "card game", "Card game" and "Quartet play this".)