Crossword Genius

Terrible noise listener said is one to avoid? (9)

Ross

I believe the answer is:

racketeer

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'terrible noise listener' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's a link between them I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for racketeer that I've seen before include "Criminal trader" , "tennis player?" , "Wide boy" , "dishonest dealer" , "Capone, for one" .)

I've seen this clue in The Guardian.
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