Affliction of the eyelid (4)
I believe the answer is:
stye
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">affliction of the eyelid</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for stye that I've seen before include "nasty spot" , "Eyelid sore" , "Infected swelling of the eye" , "It pains viewer" , "Animal pen" .)