Drink taster mentioned? (6)

I believe the answer is:

liquor

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'drink' is the definition.
(liquor is a kind of drink)

I cannot understand how the remainder of the clue works.

(Other definitions for liquor that I've seen before include "Any distilled drink" , "Alcohol" , "Any alcholic drink" , "Alcoholic spirits" , "Alcoholic beverage" .)

I've seen this clue in The Telegraph.

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