At home, a religious person finds listeners owing money (2,7)
I believe the answer is:
in arrears
'owing money' is the definition.
'in arrears' can be an answer for 'owing' (I've seen this in another clue). I'm not sure about the 'money' bit.
'at home a religious person finds listeners' is the wordplay.
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'a religious person finds' becomes 'arr' (I can't justify this - if you can you should give a lot more credence to this answer).
'listeners' becomes 'ears' (body parts which listen).
'in'+'arr'+'ears'='IN ARREARS'
Can you help me to learn more?
(Other definitions for in arrears that I've seen before include "Overdue" , "Rare rains beyond the due time" , "Behind with payments" , "Behindhand (with rent)" , "Owing" .)