Toothy type picked up in gay dating app (7)
I believe the answer is:
grinder
'toothy type' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'picked up in gay dating app' is the wordplay.
I cannot really understand how this works, but
'in' is within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for grinder that I've seen before include "Machine tool to remove jagged edges" , "Mouth" , "Eg, pepper mill" , "Operator of 12 across" , "Peppermill" .)