New on street, work incessantly (3-4)
I believe the answer is:
non-stop
'incessantly' is the definition.
Both the definition and answer are adverbs. Maybe you can see a link between them that I don't see?
'new on street work' is the wordplay.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'street' becomes 'st' (abbreviation).
'work' becomes 'op' (common abbreviation for 'opus').
'n'+'on'+'st'+'op'='NON-STOP'
Can you help me to learn more?
(Other definitions for non-stop that I've seen before include "Unceasing" , "Ceaseless" , "Uninterrupted" , "continuously" , "Continuous" .)