Trimmed around the edge (3)

I believe the answer is:

rim

'the edge' is the definition.
(rim is a kind of edge)

'trimmed around' is the wordplay.
'around' indicates a hidden word.
'RIM' is hidden in the letters of 'trimmed'.

(Other definitions for rim that I've seen before include "Flange" , "Circumference" , "Brink" , "'Brim, lip (3)'" , "Upper or outer edge" .)

I've seen this clue in The Mirror.

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