Response from congregation in Parliament (4)
I believe the answer is:
amen
'response from congregation' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'in parliament' is the wordplay.
'in' says the answer is hidden in the clue.
'AMEN' can be found hidden inside 'parliament'.
Can you help me to learn more?
(Other definitions for amen that I've seen before include "Extremist" , "Religiously 11 [THE LASTWORD]" , "Prayer ending" , "Approve" , "Name for end to prayer" .)