Inspired by preacher it established rituals (5)
I believe the answer is:
rites
'rituals' is the definition.
('rite' can be a synonym of 'ritual')
'inspired by preacher it established' is the wordplay.
'inspired by' indicates the answer is hidden within the clue (the clue has breathed in or 'inspired' the answer).
'RITES' is hidden within 'preacher it established'.
(Other definitions for rites that I've seen before include "Tires of religious ceremonies" , "Ceremonial forms" , "offices" , "Prescribed religious ceremonies" , "Formal ceremonial procedures" .)