The crossword solution for the term 'Legendary Arthur of the Courts' is Ashe. Ashe was an American professional tennis player who won 39 Grand Slam titles during his career, including seven singles titles at Wimbledon. He was the first black man to win the singles title at Wimbledon and the US Open, and he was inducted into the International Tennis Hall of Fame in 1985. He is considered one of the greatest players of all time and is remembered as a legendary figure in the sport.