One contriving to keep his job? (7)

I believe the answer is:
manager
This clue might be a double definition.
'one contriving' is the first definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'keep his job?' is the second definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'to' is the link.
Can you help me to learn more?
(Other definitions for manager that I've seen before include "Someone in control (or who copes?)" , "Boss" , "Person in charge of staff" , "Decision-maker" , "Coach" .)
