Use fists to get a drink (5)

I believe the answer is:

punch

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'drink' is the definition.
(punch is an alcoholic drink)

I don't understand the remainder of the clue.

(Other definitions for punch that I've seen before include "Hit - party drink" , "Tool for making a hole" , "Strike; wine-based drink" , "Slug - mixed drink" , "Judy's puppet husband" .)

I've seen this clue in The Irish Independent.

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