Crossword Genius

Spend less cash in bar (4)

Ross

I believe the answer is:

save

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This clue might be a double definition.

'spend less' is the first definition.
(synonyms)

'cash in bar' is the second definition.
'save' can be an answer for 'bar' (both can mean 'except'). I am not sure about the 'cash in' bit.

Can you help me to learn more?

(Other definitions for save that I've seen before include "Rescue for a rainy day?" , "Preserve; except" , "Keep" , "Retain" , "Salvage" .)

I've seen this clue in The Telegraph.
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