Person pushing for a game? (5)

I believe the answer is:

poker

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'a game?' is the definition.
(poker is a kind of game)

I can't explain the remainder of the clue.

(Other definitions for poker that I've seen before include "declared to be stiff" , "stud, say?" , "Fire-iron" , "A game for the fireplace implement" , "See 1" .)

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