As cosmetic, stick with it! (3)
I believe the answer is:
lip
This clue might be a double definition.
'as cosmetic' is the first definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'stick with it' is the second definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for lip that I've seen before include "Rim of an orifice" , "Insolence (slang)" , "Part of mouth or cheek" , "Edge; impudence" , "giving such insincere service" .)