Broad church? (8)
I believe the answer is:
catholic
This clue is a double definition.
'broad' is the first definition.
('catholic' can be similar in meaning to 'broad')
'church?' is the second definition.
(Catholic Church is an example)
(Other definitions for catholic that I've seen before include "Universal like major Christian religion" , "Prayer" , "Believer, of a sort" , "Showing widespread sympathy" , "Diverse" .)