Crossword Genius

Fix some mousetraps (3)

Ross

I believe the answer is:

set

'fix' is the definition.
(I know that fix is a more specific form of set)

'some mousetraps' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'SET' can be found hidden inside 'mousetraps'.

(Other definitions for set that I've seen before include "become firm" , "Group of things of the same kind that belong together" , "Badger's burrow" , "Cake < , plonk < , something served" , "Group; hard" .)

I've seen this clue in the Evening Standard.
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