Time to beg for a job (4)
I believe the answer is:
task
'a job' is the definition.
(synonyms)
'time to beg' is the wordplay.
'time' becomes 't' (abbreviation).
'to beg' becomes 'ask' (I've seen this in another clue).
't'+'ask'='TASK'
'for' acts as a link.
(Other definitions for task that I've seen before include "Errand, duty" , "Job to be done" , "commission" , "Allocate work" , "Burden with work" .)