With little confidence about eg worker's song (6)
I believe the answer is:
shanty
'song' is the definition.
(shanty is a kind of song)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for shanty that I've seen before include "sea air" , "Poor home - sailors' song" , "Sailor's song or derelict building" , "Ramshackle dwelling" , "Small crude dwelling" .)