Crossword Genius

They're thrown from horses in rodeos (7)

Ross

I believe the answer is:

lariats

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'rodeos' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Maybe there's an association between them I don't understand?

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for lariats that I've seen before include "Lassos" , "Long noosed ropes" , "Lasso ropes" , "Animal tethers" .)

I've seen this clue in The Irish News.
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