Hog haven (3)
I believe the answer is:
sty
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hog haven</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sty that I've seen before include "Eye ailment or pig's home" , "Pig-pen and infection on the eyelid" , "Pigpen; swelling" , "Pig pen" , "Piggery" .)