Like some sugar-free drink in boozer? (5)

I believe the answer is:

local

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'boozer?' is the definition.
(I've seen this before)

I can't explain the rest of the clue.

(Other definitions for local that I've seen before include "In nearby area" , "Confined to a limited area" , "The familiar neighbourhood pub" , "nearest boozer!" , "Regional; a pub" .)

I've seen this clue in The Telegraph and The Sun.

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