Shopkeeper deals with staff (9)
I believe the answer is:
tradesman
'shopkeeper' is the definition.
(I know that shopkeeper can be written as tradesman)
'deals with staff' is the wordplay.
'deals' becomes 'trades' ('trade' can be a synonym of 'deal').
'with' is a charade indicator (letters next to each other).
'staff' becomes 'man' (as in staffing or manning a particular place).
'trades'+'man'='TRADESMAN'
(Other definitions for tradesman that I've seen before include "Shopkeeper; skilled mechanic" , "fellow at the back door?" , "Buyer/seller of goods" , "Skilled hand" , "Small-scale businessman" .)