Roman's new territory (5)
I believe the answer is:
manor
'territory' is the definition.
The definition and answer can be both related to property as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'roman's new' is the wordplay.
'new' is an anagram indicator.
'roman' is an anagram of 'MANOR'.
Can you help me to learn more?
(Other definitions for manor that I've seen before include "Big house - police district" , "Large country house for Roman" , "house on estate" , "Mansion of a wealthy person" , "patch" .)