Narrow-minded friend transfixed by a mixed choir (9)
I believe the answer is:
parochial
'narrow-minded' is the definition.
(thesaurus)
'friend transfixed by a mixed choir' is the wordplay.
'friend' becomes 'pal' (pal can mean a friend).
'transfixed by' means one lot of letters goes inside another.
'mixed' is an anagram indicator.
'choir' anagrammed gives 'rochi'.
'a'+'rochi'='arochi'
'pal' enclosing 'arochi' is 'PAROCHIAL'.
(Other definitions for parochial that I've seen before include "Having a narrow scope" , "Narrow in outlook" , "Related to local area - narrow" , "rather restricted" .)