It can get a poker player in the money (5)

I believe the answer is:

flush

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'in the money' is the definition.
(I've seen this before)

I don't understand how the remainder of the clue works.

(Other definitions for flush that I've seen before include "with a load of cash" , "Rouse game and put to flight" , "Cleanse by running water" , "Level (with surface); put up (game bird)" , "Pull the chain - rush of emotion - good poker hand - having plenty of money" .)

I've seen this clue in the Evening Standard.

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