Carry on with the right worker (4)
I believe the answer is:
rant
'carry on' is the definition.
(I've seen this in another clue)
'with the right worker' is the wordplay.
'with' is a charade indicator (letters next to each other).
'the right' becomes 'r' (common abbreviation).
'worker' becomes 'ant' (worker is a type of ant).
'r' next to 'ant' is 'RANT'.
(Other definitions for rant that I've seen before include "Wild speech" , "Shout wildly at length" , "Angry tirade" , "End-of-course exams" , "Show anger" .)