A small whisky be hanged! (4)

I believe the answer is:

drop

I believe this is a double definition.

'a small whisky' is the first definition.
(drop of drink)

'be hanged' is the second definition.
(hanging something might make it drop)

(Other definitions for drop that I've seen before include "Fail to hold" , "Small drink" , "Pendant earring" , "Small bit - fall" , "shed" .)

I've seen this clue in The Guardian.

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