It's included among oriental cosmetics (4)
I believe the answer is:
talc
'it's included' is the definition.
I can't tell whether this definition defines the answer.
'among oriental cosmetics' is the wordplay.
'among' says the answer is hidden in the clue.
'TALC' can be found hidden inside 'oriental cosmetics'.
Can you help me to learn more?
(Other definitions for talc that I've seen before include "Scented powder used after bathing" , "Soft mineral; powder" , "Toilet powder - mica" , "soother" , "After-bath powder" .)