| Clue | Source | Date |
|---|---|---|
| The UK's first ____ was installed on the M40 in 1991 | The Times Specialist Sunday | 16 Apr 2023 |
| Visiting sister, went and arrived with a progress check | ||
| One providing evidence in drive-by shooting | ||
| Road safety device | The Times Concise | 13 Feb 2020 |
| One likely to snap at those driving over limit |