Cut Mass among Anglicans before November (7)
I believe the answer is:
cheapen
'cut' is the definition.
(thesaurus)
'mass among anglicans before november' is the wordplay.
'mass' becomes 'heap' ('heap' can be a synonym of 'mass'**).
'among' means one lot of letters goes inside another.
'anglicans' becomes 'ce' (Church of England).
'before' says to put letters next to each other.
'november' becomes 'n' (phonetic alphabet: alpha, bravo, charlie etc.).
'heap' inserted within 'ce' is 'cheape'.
'cheape'+'n'='CHEAPEN'
(Other definitions for cheapen that I've seen before include "Reduce worth, degrade" , "Reduce the price of" , "Cut" , "decrease in value" , "Tried" .)