Ocular affliction (4)
I believe the answer is:
stye
'ocular affliction' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stye that I've seen before include "nasty spot" , "producing eyesore" , "Swelling near the eye" , "swelling by organ" , "Infection on the edge of the eye" .)