Gin measure (5)
I believe the answer is:
optic
(Other definitions for optic that I've seen before include "Body part" , "Like a sort of nerve" , "Bar measure" , "Relating to vision" , "Picot (anag.)" .)
I believe the answer is:
optic
(Other definitions for optic that I've seen before include "Body part" , "Like a sort of nerve" , "Bar measure" , "Relating to vision" , "Picot (anag.)" .)