Clergymen producing church decrees (6)
I believe the answer is:
canons
I believe this clue is a double definition.
'clergymen' is the first definition.
(canon is a kind of clergyman)
'church decrees' is the second definition.
(I've seen this in another clue)
'producing' is the link.
(Other definitions for canons that I've seen before include "Bodies of rules or principles, in religions say" , "These members of the clergy sound like big guns" , "Large guns" , "Fundamental principles generally accepted in a particular field" , "Officially accepted collections of writings" .)