The term 'BIG NAME IN BOXING' can be summarized by two crossword solutions: ALI (3 letters) and EVERLAST (8 letters). Muhammad Ali, also known as Cassius Clay, was a three-time World Heavyweight Champion and Olympic gold medalist. He is widely considered one of the greatest boxers of all time. Everlast is an American brand of boxing equipment and apparel. It has been associated with boxing since 1910 and is the official outfitter of the International Boxing Hall of Fame.