| Clue | Source | Date |
|---|---|---|
| Utterly distinctive | The Times Concise | 17 Aug 2023 |
| Make Istanbul nervous beyond a doubt | ||
| Make Istanbul nervous beyond a doubt | ||
| Make Istanbul out to be distinctive | ||
| Not confusable with anything else | The Times Concise | 25 May 2016 |
| Make Istanbul mysterious? That's as plain as the nose on your face! |