Finished sketch for deficit in account (9)

I believe the answer is:

overdraft

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'deficit in account' is the definition.
'overdraft' can be an answer for 'deficit' (I've seen this before). I am not sure about the 'in account' bit.

'finished sketch' is the wordplay.
'finished' becomes 'over' (over can mean finished or ended).
'sketch' becomes 'draft' (draft is a kind of sketch).
'over'+'draft'='OVERDRAFT'

'for' acts as a link.

Can you help me to learn more?

(Other definitions for overdraft that I've seen before include "shows lack of balance" , "financial licence" , "Excess withdrawal from bank" , "Bank lending arrangement" , "Sum overdrawn" .)

I've seen this clue in The Daily Express.

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