On the quiet, yes, at certain points they receive money (6)
I believe the answer is:
payees
'they receive money' is the definition.
The definition suggests an adverb but the answer is not.
'on the quiet yes at certain points' is the wordplay.
'on' says to put letters next to each other.
'the quiet' becomes 'p' (music symbol for 'piano').
'yes' becomes 'aye' (I've seen this before).
'at' means one lot of letters go next to another.
'certain points' becomes 'es' (E is an example. I am not sure about the 'certain' bit.**).
'p'+'aye' is 'paye'.
'paye'+'es'='PAYEES'
Can you help me to learn more?
(Other definitions for payees that I've seen before include "Cheques are made out to them" , "Those who get the money as for goods or services" , "To whom money is paid" , "The people who receive the money" .)