The crossword solutions for the term 'Flag Thrower' are REF, which stands for referee. A referee is a person who officiates a sporting event and enforces the rules of the game. They are responsible for making sure that the players abide by the rules and regulations of the sport. Referees also have the authority to issue warnings or penalties to players who break the rules. Flag throwers are referees who throw a flag when they see an infraction or penalty occur during a game.