Cosmetic powder (4)
'cosmetic powder' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for talc that I've seen before include "Powdered mineral" , "Soft white powder" , "It is used to absorb moisture" , "Fragrant powder" , "Drier" .)
(Other definitions for kohl that I've seen before include "Black powder used as eye make-up" , "Former German Chancellor" , "Black powder for eyes" , "Black eye-liner; ex-German Chancellor" , "Helmut --, German statesman" .)