Nurse housed in dry temporary accommodation (4)
I believe the answer is:
tent
'temporary accommodation' is the definition.
(people stay in a tent temporarily)
'nurse housed in dry' is the wordplay.
'nurse' becomes 'EN' (abbreviation for enrolled nurse).
'housed in' indicates putting letters inside.
'dry' becomes 'tt' (short for teetotal - no alcohol).
'en' put within 'tt' is 'TENT'.
(Other definitions for tent that I've seen before include "pavilon" , "Portable shelter for camper" , "Portable shelter - red wine" , "Temporary accommodation" , "abode meant to be temporary" .)