Very much is supported by the Church, now (2,4)
I believe the answer is:
at once
'now' is the definition.
(thesaurus)
'very much is supported by the church' is the wordplay.
'very much' becomes 'at' (I can't explain this - if you can you should believe this answer much more).
'is supported by' becomes 'on'.
'the church' becomes 'ce' (abbreviation for Church of England).
'at'+'on'+'ce'='AT ONCE'
Can you help me to learn more?
(Other definitions for at once that I've seen before include "Immediately, this instant" , "Instantly" , "This instant, hop to it" , "Immediately, without delay" , "This instant - no delay (2,4)" .)