Game's involving two bridge players getting tricks (5)
I believe the answer is:
ruses
'tricks' is the definition.
(a ruse is a trick or ploy)
'game's involving two bridge players' is the wordplay.
'two bridge players' can mean two substitutions for 'bridge player'.
'game's' becomes 'RU's' (rugby union).
'involving' means one lot of letters goes inside another.
'bridge player' becomes 's' (bridge players are North, East, South, West).
'bridge player' becomes 'e' (bridge players are North, East, South, West).
's'+'e'='se'
'rus' going around 'se' is 'RUSES'.
'getting' acts as a link.
(Other definitions for ruses that I've seen before include "Clever strategems or plans" , "Clever plans designed to deceive" , "cunning tricks" , "Tricks or deceptions" , "'Stratagems, tricks (5)'" .)