Crossword Genius

Trashed uniform adopted by leftie (6)

Ross

I believe the answer is:

ruined

'trashed' is the definition.
(trash can mean to ruin or damage)

I cannot understand how the rest of the clue works.

(Other definitions for ruined that I've seen before include "shot" , "Utterly destroyed" , "Broke" , "Reduced to a state of poverty" , "Irreparably damaged" .)

I've seen this clue in The Guardian.
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