Wherein to pig it? (3)
I believe the answer is:
sty
If this is the answer, I'm afraid I cannot explain it.
Can you help me to learn more?
(Other definitions for sty that I've seen before include "Pig's enclosure" , "Sore on eyelid" , "Piggery" , "Hog house" , "Pig home or eye sore" .)