Organs of sight in the mouth? (8)
I believe the answer is:
eyeteeth
'organs of sight in the mouth?' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for eyeteeth that I've seen before include "Four pointed structures in the mouth" , "they're sharp" , "choppers" , "Canine bones in upper jaw - visualise them" , "Organs of sight in the mouth?" .)