Advance payment desired when banks withdraw (4)

I believe the answer is:

ante

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'advance payment' is the definition.
(I've seen this in another clue)

I cannot understand how the remainder of the clue works.

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(Other definitions for ante that I've seen before include "Card-player's stake" , "Poker-player's stake before the deal" , "Stake, bet" , "Advance stake" , "early payment" .)

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