Eye damage from sun, perhaps (6)
I believe the answer is:
shiner
I believe this clue is a double definition.
'eye damage' is the first definition.
(shiner can mean a black eye)
'sun perhaps' is the second definition.
(something which shines)
'from' is the link.
(Other definitions for shiner that I've seen before include "Possible end of scrapping" , "A slangy black eye" , "device that lightens one's work" , "Mouse" , "Black eye (colloq.)" .)