| LISTON | Sonny, world heavyweight boxing champion defeated by Cassius Clay in 1964 (6) |
| SONNYLISTON | World heavyweight champion defeated by Cassius Clay in 1964 |
| MUHAMMADALI | Name adopted by Cassius Clay (8, 3) |
| COOPER | With a left hook dubbed "Enry's Ammer" that floored Muhammad Ali (then Cassius Clay) in 1963, the only man ever to win three Lonsdale belts outright (6) |
| BRUTUS | Roman politician persuaded by Cassius to join the conspiracy against Caesar (6) |
| ADRIAN | __ Lewis Morgan, actor who plays Jimmi Clay in Doctors (6) |
| ELI | Goree who played Cassius Clay in "One Night in Miami..." |
| SONNY | Muhammad Ali (then Cassius Clay) defeated ___ Liston in 1964 to become World Heavyweight Champion for the first time. (6) |
| CLAYMORE | Sword in Rome forged by Cassius once (8) |
| FANCILY | Fellow working in clay in a decorative way (7) |
| WHIG | Political party founded by Henry Clay in the 18305 |
| ETHANHAWKE | Boyhood actor who plays Clay in Netflix's Leave the World Behind: 2 wds. |
| ALI | Muhammad ___, name taken by boxer Cassius Clay (3) |
| HALCYON | Happy time making clay in Japanese car, say the wise (7,4) |
| REALISTIC | Clay in suspension, I see, is down to earth (9) |
| TRAYCLOTH | Faith's holding plastic clay in a covering (4-5) |
| LEWIS | Adrian __ Morgan, plays Dr Jimmi Clay in Doctors (5) |
| ENCYCLICAL | Misspelling of "clay" in abbreviated ecclesiastical letter from Vatican |
| ADOBELILY | Californian flowering plant with pink petals, named after the clay in which it grows (5, 4) |
| STNICHOLAS | Moulded Scottish clay in 27Ac 29Ac (2,8,4) |
