Pay and fire (9)
I believe the answer is:
discharge
I believe this is a double definition.
'pay' is the first definition.
(I've seen this before)
'fire' is the second definition.
(I know that fire can be written as discharge)
'and' is the link.
(Other definitions for discharge that I've seen before include "Fire (gun); sack (worker)" , "let go" , "Fire (a gun); release from custody" , "Send away - perform" , "Performance" .)