Husband wrote reams about women's quarters (6)
I believe the answer is:
harems
'women's quarters' is the definition.
(I've seen this in another clue)
'husband wrote reams' is the wordplay.
I cannot really understand how this works, but
'husband' could be 'h' (abbreviation) and 'h' is found within the answer.
an anagram of 'reams' is 'arems' which is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'about' is the link.
Can you help me to learn more?
(Other definitions for harems that I've seen before include "Wives' associations" , "Seraglios, women's quarters in Muslim household" , "quarters reserved for females" , "Masher found in quarters of Muslim women" .)