| Clue | Source | Date |
|---|---|---|
| Very hard silvery-white metal (10) | ||
| Hard silvery-white metal | The Times Concise | 23 May 2021 |
| Metallic element | The Times Concise | 03 Jan 2019 |
| Element #42 (which for some reason isn't in as many puzzles as, say, 19-Across) | Jonesin | 02 Oct 2018 |
| Hit dumbly on me and Mo | ||
| Its atomic number is 95-Across |