Ultimately refusing employment (5)
I believe the answer is:
using
'employment' is the definition.
(I've seen this in other clues)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for using that I've seen before include "Exploiting for one's own advantage" , "Utilising" , "practice" , "Employing" , "Putting into service" .)