Enforce reforms by November church synod? (10)
I believe the answer is:
conference
'synod?' is the definition.
(I've seen this before)
'enforce reforms by november church' is the wordplay.
'reforms' indicates anagramming the letters.
'by' means one lot of letters go next to another.
'november' becomes 'n' (phonetic alphabet: alpha, bravo, charlie etc.).
'church' becomes 'ce' (abbreviation for Church of England).
'enforce' with letters rearranged gives 'confere'.
'confere'+'n'+'ce'='CONFERENCE'
(Other definitions for conference that I've seen before include "synod?" , "fruit" , "A chance to discuss" , "Assembly for discussion" , "Meeting for discussion - type of pear" .)