Farm outbuilding
I believe the answer is:
sty
'farm outbuilding' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sty that I've seen before include "Pig's enclosure" , "Pig-pen and eye infection" , "Filthy place" , "Sore on eyelid" , "Enclosure for swine" .)