Eyelid swelling (4)
I believe the answer is:
stye
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">eyelid swelling</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for stye that I've seen before include "Ocular affliction" , "Eyelid sore" , "producing eyesore" , "Tamworth residence" , "Eyelid affliction" .)