| Clue | Source | Date |
|---|---|---|
| Smart behaviour: vital part needs twist to work (5-10) | The Guardian Cryptic | 22 Jan 2026 |
| Speed of thought (5-10) | ||
| Sharpness of Swift, Lawrence and Dickens, initially in The Observer | Irish Times Crosaire | 23 Aug 2019 |
| Ready source of evidence about Edward showing mental agility | The Telegraph Cryptic | 13 Apr 2017 |
| Attribute of 16-Across and the like |