Don't work for nothing (4)
I believe the answer is:
earn
'don't' is the definition.
Both the answer and definition are verbs in their base form.
Perhaps there's an association between them I don't understand?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for earn that I've seen before include "Deserve; get paid" , "Gain credit from" , "Acquire through merit" , "Get (money) for work or labour" , "Acquire money by labour" .)