To provide money, give a chap a note (4)
I believe the answer is:
lend
'to provide' is the definition.
(I've seen this in another clue)
'give a chap a note' is the wordplay.
'give' is a charade indicator (letters next to each other).
'a chap' becomes 'len' (I've seen this in other clues).
'a note' becomes 'd' (musical note).
'len'+'d' is 'LEND'.
'money' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for lend that I've seen before include "Make a loan" , "Give the use of for a time" , "Give (a quality) to" , "Let someone borrow" , "Advance, loan" .)