Post money for gamble (5)

I believe the answer is:

stake

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This clue could be a double definition.

'post money' is the first definition.
'stake' can be an answer for 'post' (synonyms). I am not sure about the 'money' bit.

'gamble' is the second definition.
(stake is a kind of gamble)

'for' is the link.

Can you help me to learn more?

(Other definitions for stake that I've seen before include "Post; money wagered" , "A wager or pointed pole" , "Keats (anag.)" , "Post; gamble" , "Wooden post; ante" .)

I've seen this clue in The Irish Independent.

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