| Clue | Source | Date |
|---|---|---|
| Chemical element with the symbol Sm, named after a Russian engineer (8) | ||
| Silvery-white metal; symbol Sm | Mirror Quiz | 29 Nov 2023 |
| Silvery-white metal; symbol Sm (8) | ||
| Silvery metallic element, atomic number 62 | The Telegraph General Knowledge | 08 Oct 2017 |