Irish church worker perhaps is into refreshing brew (3,4)
I believe the answer is:
ice beer
'refreshing brew' is the definition.
The definition suggests a singular noun which matches the answer.
'irish church worker perhaps is into' is the wordplay.
'irish' becomes 'IR' (abbreviation).
'church' becomes 'CE' (abbreviation for Church of England).
'worker perhaps' becomes 'bee' (I've seen this in other clues).
'is into' indicates putting letters inside.
'ce'+'bee'='cebee'
'ir' going around 'cebee' is 'ICE BEER'.
Can you help me to learn more?
(Another definition for ice beer that I've seen is " strong drink".)