Noteworthy new line for the coroner (7)

I believe the answer is:

crooner

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'noteworthy new line for' is the definition.
The definition suggests a singular noun which matches the answer.

'coroner' is the wordplay.
'coroner' anagrams to 'CROONER'.
But, I am unsure how this is indicated.

'the' acts as a link.

Can you help me to learn more?

(Other definitions for crooner that I've seen before include "One who sings like Bing?" , "Profession of Bing, Frank or Perry" , "Sentimental balladeer" , "Crosby or Sinatra?" , "Singer of sentimental songs" .)

I've seen this clue in the Evening Standard.

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