The crossword solution for the term 'Whom Clay Became' is ALI, which stands for Muhammad Ali, an American professional boxer and activist. He was widely regarded as one of the most significant and celebrated sports figures of the 20th century. Ali was born Cassius Marcellus Clay Jr. in Louisville, Kentucky, and began training as an amateur boxer when he was 12 years old. He won a gold medal in the light heavyweight division at the 1960 Summer Olympics in Rome and went on to become the first and only three-time lineal world heavyweight champion. He was known for his controversial and outspoken views, which often landed him in the public spotlight.