Property mistress? (8)
I believe the answer is:
landlady
'property mistress?' is the definition.
'landlady' can be an answer for 'mistress?' (thesaurus). I am not sure about the 'property' bit.
'property mistress?' is the wordplay.
'property' becomes 'land' (kind of property).
'mistress?' becomes 'lady' (I can't explain this - if you can you should believe this answer much more).
'land'+'lady'='LANDLADY'
Can you help me to learn more?
(Other definitions for landlady that I've seen before include "She takes in lodgers" , "Letter" , "country-woman" , "She leases property" , "Woman letting out a property or rooms" .)