No longer worried about wind being heard, with special provision for excess (9)
I believe the answer is:
overdraft
'no' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'longer worried about wind being heard with special provision for excess' is the wordplay.
I cannot quite see how this works, but
'about' could be 'over' (both can mean around) and 'over' is found within the answer.
'wind' could be 'draft' (draft is a kind of wind) and 'draft' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for overdraft that I've seen before include "Debit balance in bank account" , "Bank borrowing" , "Bank facility to spend more than you have" , "Red balance" , "money that must be repaid" .)