American right-winger concerning landlord (10)
I believe the answer is:
republican
'american right-winger' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe there's a link between them I don't understand?
'concerning landlord' is the wordplay.
'concerning' becomes 're' (both can mean on a particular topic).
'landlord' becomes 'publican' (as in a pub landlord).
're'+'publican'='REPUBLICAN'
Can you help me to learn more?
(Other definitions for republican that I've seen before include "Member of US political party" , "in foreign party" , "anti-monarchist" , "American politician" , "American in party" .)