Cheeky make-up product (5)
I believe the answer is:
rouge
'cheeky make-up product' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
This is all the clue.
Can you help me to learn more?
(Other definitions for rouge that I've seen before include "Blusher" , "Wheel shows this" , "struggle at Eton" , "Cheek cosmetic" , "Red face powder" .)