Diligence that may be required to get a job? (11)
I believe the answer is:
application
'diligence' is the definition.
(synonyms)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for application that I've seen before include "computer package?" , "Request for job etc" , "industry?" , "Hard work" , "Practical relevance" .)