Crossword Genius

Fighter runs through sobbing person (7)

Ross

I believe the answer is:

brawler

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

'fighter' is the definition.
(brawler is a kind of fighter)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for brawler that I've seen before include "Yobbo" , "Street fighter" .)

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