Money for a county (5)

I believe the answer is:

bucks

I believe this clue is a double definition.

'money' is the first definition.
(informal term for dollars)

'for a county' is the second definition.
(short for Buckinghamshire)

(Other definitions for bucks that I've seen before include "Animals; a county (abbr.)" , "used for gambling in Reno?" , "Goes against" , "US money" , "Male antelopes" .)

I've seen this clue in The Daily Express.

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