| Clue | Source | Date |
|---|---|---|
| Solid figure having eight faces (10) | ||
| Eight-sided figure anchored to go adrift (10) | ||
| Cut gemstone, sometimes | ||
| Hour immersed in Art Deco complex regarding geometric form | The Telegraph Toughie | 09 Nov 2018 |
| One of five of Plato he'd put in sort of cartoon |