Answer:

scrapper

Answer	Crossword Clue
SCRAPPER	Pugnacious sort
SCRAPPER	Game fighter
SCRAPPER	Quarrelsome one

SCRAPPER	Plucky fighter.
SCRAPPER	Boxer: Slang.
SCRAPPER	Pugilist: Slang.
SCRAPPER	Pugilist
SCRAPPER	Aggressive pugilist
SCRAPPER	Fighting man
SCRAPPER	Brawler

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.