Crossword Genius

Quickly stuck (4)

Ross

I believe the answer is:

fast

I believe this is a double definition.

'quickly' is the first definition.
(synonyms)

'stuck' is the second definition.
(both can mean secure)

(Other definitions for fast that I've seen before include "Refuse to eat - quickly" , "Go without food" , "firm to > go without" , "Abstain from food/drink" , "sort of convenience food" .)

I've seen this clue in The Times.
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