The answer to the crossword is ORR, which stands for Bobby Orr, a Canadian hockey player who played for the Boston Bruins and Chicago Blackhawks in the National Hockey League (NHL). He is widely regarded as one of the greatest hockey players of all time and was inducted into the Hockey Hall of Fame in 1979. He won two Stanley Cups with the Bruins and was awarded the Hart Memorial Trophy as the NHL's most valuable player three times.