Conservative/right English landlord (10)
I believe the answer is:
republican
'conservativeright english landlord' is the definition.
I can't judge whether this definition defines the answer.
'conservativeright english landlord' is the wordplay.
'conservativeright' becomes 'r' (I can't explain this - if you can you should believe this answer much more).
'english' becomes 'e' (abbreviation).
'landlord' becomes 'publican' (as in a pub landlord).
'r'+'e'+'publican'='REPUBLICAN'
(Other definitions for republican that I've seen before include "American in party" , "Eg Lincoln" , "in foreign party" , "American politician" , "anti-monarchist" .)