Crossword Genius

Deteriorates, as a user may (4,2,3)

Ross

I believe the answer is:

goes to pot

This clue is a double definition.

'deteriorates' is the first definition.
(I've seen this before)

'as a user may' is the second definition.
(a drug user might smoke 'pot')

(Other definitions for goes to pot that I've seen before include "Becomes bad" , "Becomes ruined" , "Become ruined" , "Prepares to follow snooker player" , "Approaches the snooker table" .)

I've seen this clue in The Guardian.
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