Crossword Genius

Tool, when turned, let us in (7)

Ross

I believe the answer is:

utensil

'tool' is the definition.
(thesaurus)

'turned let us in' is the wordplay.
'turned' indicates anagramming the letters.
'let'+'us'+'in'='letusin'
'letusin' with letters rearranged gives 'UTENSIL'.

'when' is the link.

(Other definitions for utensil that I've seen before include "knife, maybe" , "A container for kitchen use" , "Mandolin, perhaps" , "Implement, maybe in kitchen" , "A kitchen instrument or container" .)

I've seen this clue in The Times.
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