The crossword solution for the term 'Call a Strike, Say' is UMP, which stands for umpire. An umpire is an official in a variety of sports who is responsible for making rulings and enforcing the rules of the game. In baseball, an umpire's primary responsibility is to call balls and strikes. When an umpire calls a strike, they are signaling to the batter that the pitch was within the strike zone and the batter must either swing at the pitch or take the strike.