Untidy room from which Oink might emerge? (6)
I believe the answer is:
pigsty
I believe this clue is a double definition.
'untidy room' is the first definition.
'from which oink might emerge?' is the second definition.
(Other definitions for pigsty that I've seen before include "messy situation" , "Very dirty house" , "Very dirty abode" , "dump" , "Without boots" .)