| Clue | Source | Date |
|---|---|---|
| Tainting, contaminating | The Times Concise | 07 Oct 2025 |
| Making impure | The Telegraph Quick | 04 Aug 2025 |
| Mixing English in sign a film's unsuitable for kids? | ||
| Poorly triangulated, lowering quality | The Telegraph Toughie | 16 Jul 2024 |
| Adding an inferior substance to | The Times Concise | 12 Jan 2022 |
| Creating distortion, shapes triangulated | ||
| Making less pure | The Times Concise | 11 Sep 2017 |