| Clue | Source | Date |
|---|---|---|
| Like laminated glass | The Times Sunday Concise | 27 Jul 2025 |
| Destroy evidence that's impossible to crack (12) | The Guardian Quiptic | 20 Jul 2025 |
| Unbreakable (12) | Puzzler | 15 Jun 2025 |
| Story begins with mad character presenting evidence that's very strong | ||
| A sport for the active, not likely to crack (12) | ||
| What car windscreen's should be — father's troop (anag) | The Guardian Quick | 27 Jan 2023 |
| Designed not to break | The Guardian Quick | 30 Jul 2022 |
| Small milliner with soft top withstanding crash | ||
| Like some safety glass | Eugene Sheffer | 29 Oct 2018 |
| Like tempered glass |