Broadminded member of church (8)
I believe the answer is:
catholic
I believe this clue is a double definition.
'broadminded' is the first definition.
(similar in meaning)
'member of church' is the second definition.
(member of the Catholic Church)
(Other definitions for catholic that I've seen before include "Showing widespread sympathy" , "Chat Clio up to be Roman religion" , "of interest to all" , "Chat Clio up to be universal" , "Prayer" .)