Kingmaker needs tree for English country home (9)
I believe the answer is:
nashville
'country home' is the definition.
(home of country music)
'kingmaker needs tree for english' is the wordplay.
I cannot really understand how this works, but
'tree' could be 'ash' (ash is a kind of tree) and 'ash' is present in the answer.
'english' could be 'e' (abbreviation) and 'e' is located in the answer.
This explanation may well be incorrect...
(Other definitions for nashville that I've seen before include "Tennessee's capital" , "Capital of Tennessee and home of country music" , "Tennessee state capital" , "Grand Ole Opry city" , "music centre" .)