Swindles used by those in court (7)

I believe the answer is:

rackets

I'm a little stuck... Click here to teach me more about this clue!

'swindles' is the definition.
The answer and definition can be both acts as well as being plural nouns.
Perhaps you can see a link between them that I can't see?

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for rackets that I've seen before include "Dodges" , "Criminal activities" , "Those taken to court" , "may be covered in the press" , "Game - noises" .)

I've seen this clue in The Irish Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.