I refuse you to start song (6)

I believe the answer is:

shanty

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'song' is the definition.
(shanty is a kind of song)

I can't explain the remainder of the clue.

(Other definitions for shanty that I've seen before include "A sailor's sea song, or a rundown hut" , "Sea song - hovel" , "Here you get inferior accommodation" , "Roughly built hut" , "Ramshackle dwelling" .)

I've seen this clue in The Telegraph.

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