Isolation, seclusion (6)
I believe the answer is:
purdah
This clue is a double definition.
'isolation' is the first definition.
(I know that purdah is a type of isolation)
'seclusion' is the second definition.
(purdah is a system of seclusion for women)
(Other definitions for purdah that I've seen before include "System in Muslim communities of keeping women from the sight of men" , "Muslim practice of keeping women from sight of men or strangers" , "Hindu system of keeping women from sight of men" , "Hindu or Muslim seclusion of women" , "Screening curtain; seclusion" .)