Campus residence (4)
I believe the answer is:
dorm
'campus residence' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dorm that I've seen before include "place to sleep" , "Communal sleeping place (colloq.)" , "Boarding school bedroom (abbr)" , "Rest area" , "Sleeping quarters (abbr)" .)