Balance in supply provided by French banker (9)

I believe the answer is:

equipoise

I'm a little stuck... Click here to teach me more about this clue!

'balance' is the definition.
('equipoise' can be a synonym of 'balance')

'supply provided by french banker' is the wordplay.
'supply' becomes 'equip' (equipping is a kind of supplying).
'provided by' is a charade indicator (letters next to each other).
'french banker' becomes 'oise' (I am not sure about this - if you are sure you should believe this answer much more).
'equip'+'oise'='EQUIPOISE'

'in' acts as a link.

Can you help me to learn more?

(Another definition for equipoise that I've seen is " balance".)

I've seen this clue in The Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.