Provide money -- though only one note, as intended (6)
I believe the answer is:
fiance
'intended' is the definition.
(someone's 'intended' is who they are due to marry)
'provide money though only one note' is the wordplay.
I cannot quite understand how this works, but
'money' could be 'c' and 'c' is found in the answer.
'one' could be 'ane' (synonyms) and 'ane' is found within the remaining letters.
'note' could be 'f' (musical note) and 'f' is found within the answer.
A single letter 'i' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'as' is the link.
Can you help me to learn more?
(Other definitions for fiance that I've seen before include "One who's engaged" , "He's engaged to be married" , "who may be planning marriage" , "He's going to marry" , "Prospective groom" .)