Women's quarters (5)
I believe the answer is:
harem
'women's quarters' is the definition.
(historically, women's quarters in Muslim household)
This is the entire clue.
(Other definitions for harem that I've seen before include "Female living quarters in a Muslim household" , "Collection of wives, concubines and female servants" , "Quarters occupied by women by Muslim household" , "Set of wives" , "Separate women's quarters" .)