One taking canine out of trap? (7)
I believe the answer is:
dentist
'one taking canine out of trap?' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
This is all the clue.
Can you help me to learn more?
(Other definitions for dentist that I've seen before include "Someone who drills for a living?" , "Stinted (anag.)" , "Doctor of teeth" , "Tooth surgeon" , "Treatment provider for teeth" .)