Crossword Genius

Powder used in dental cleaning (4)

Ross

I believe the answer is:

talc

'powder' is the definition.
(talcing is a kind of powdering)

'in dental cleaning' is the wordplay.
'in' indicates a hidden word.
'TALC' is hidden within 'dental cleaning'.

'used' is the link.

(Other definitions for talc that I've seen before include "Mineral used as a toiletry" , "Soft stuff" , "Cosmetic powder" , "Powder used as toiletry" , "Powdered mineral" .)

I've seen this clue in the Evening Standard.
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