The crossword solution for the term 'Frazier Foe' is ALI, which stands for the legendary boxer Muhammad Ali. Ali was an American professional boxer and activist who is widely regarded as one of the most significant and celebrated sports figures of the 20th century. He was known for his unique boxing style, which he called 'float like a butterfly, sting like a bee'. Ali was famously involved in a series of three fights with Joe Frazier, which were some of the most famous boxing matches of all time.