Dismiss moneyman? (7)
I believe the answer is:
cashier
This clue is a double definition.
'dismiss' is the first definition.
(I've seen this before)
'moneyman?' is the second definition.
(cashier is a kind of moneyman)
(Other definitions for cashier that I've seen before include "Discharge" , "Fire" , "banking officer" , "Remove from service" , "One handles the money" .)