Scented powder (4)
I believe the answer is:
talc
'scented powder' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for talc that I've seen before include "Mica - scented body powder" , "Bathroom powder (abbr)" , "Perfumed drying powder" , "Soft mineral; powder" , "White powder for the bathroom" .)