Socket set (4)
I believe the answer is:
eyes
'socket set' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for eyes that I've seen before include "Optical organs" , "Visual organs" , "Views" , "''Drink to me only with thine ...'' (Johnson)" , "They're said to be the mirrors of the soul" .)