Toilet product in a dental clinic (4)
I believe the answer is:
talc
'toilet product' is the definition.
The definition and answer can be both substances as well as being singular nouns.
Maybe there's a link between them I don't understand?
'in a dental clinic' is the wordplay.
'in' says the answer is hidden in the clue.
'TALC' is hidden in the letters of 'dental clinic'.
Can you help me to learn more?
(Other definitions for talc that I've seen before include "soother" , "In brief, popular body powder" , "Softest mineral on Mohs hardness scale" , "Baby powder" , "Bathroom powder (abbr)" .)