Outspoken sample of Anglican didacticism (6)
I believe the answer is:
candid
'outspoken' is the definition.
('candid' can be a synonym of 'outspoken')
'sample of anglican didacticism' is the wordplay.
'sample of' indicates a hidden word (I've seen this in other clues).
'CANDID' is hidden within 'anglican didacticism'.
(Other definitions for candid that I've seen before include "Open and truthful" , "Forthrightly sincere" , "Frank - unbiased" , "Free and frank" , "Frank and outspoken" .)