Doctrinal; opinionated (8)
I believe the answer is:
dogmatic
This clue is a double definition.
'doctrinal' is the first definition.
(thesaurus)
'opinionated' is the second definition.
(I've seen this in another clue)
(Other definitions for dogmatic that I've seen before include "Opinionated" , "Giving opinions in arrogant know-all way" , "Stating opinions as if unquestionable" , "Stating opinions forcefully and arrogantly" , "Assertive, overbearing" .)