Billing daily departure (zero deduction applied) (8)
I believe the answer is:
charging
'billing' is the definition.
('charge' can be a synonym of 'bill')
'daily departure zero deduction applied' is the wordplay.
I cannot really understand how this works, but
'daily' could be 'char' (both can mean a cleaner) and 'char' is located in the answer.
The remaining letters 'ging' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for charging that I've seen before include "Entrusting (with a task)" , "Asking as a price, running violently, indicting" , "Accusing" .)