Toothy hairdressing assistant (4)
I believe the answer is:
comb
This clue might be a double definition.
'toothy hairdressing' is the first definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'assistant' is the second definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
Can you help me to learn more?
(Other definitions for comb that I've seen before include "Device for tidying one's appearance" , "business storage unit" , "Disentangle" , "Toothed grooming implement" , "Common hair tidier" .)