Spoil a drink (6)

I believe the answer is:

scotch

I believe this clue is a double definition.

'spoil' is the first definition.
(synonyms)

'a drink' is the second definition.
(Scotch is an example)

(Other definitions for scotch that I've seen before include "dish" , "Finish off" , "Put an end to - in Glasgow? (6)" , "Frustrate; quash" , "Whisky (not whiskey!)" .)

I've seen this clue in the Evening Standard.

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