Crossword Genius

Extremely cold drink (6)

Ross

I believe the answer is:

bitter

I believe this clue is a double definition.

'extremely cold' is the first definition.
(bitterly cold)

'drink' is the second definition.
(bitter is a kind of drink)

(Other definitions for bitter that I've seen before include "Acrid - beer" , "Sour tasting, like English ale" , "severe" , "Tart like some English beer" , "Sharp-tasting or resentful" .)

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