| Clue | Source | Date |
|---|---|---|
| Secondary classification set up by accident (7) | ||
| Class within a class | Thomas Joseph | 08 Mar 2025 |
| Secondary category (7) | ||
| Lower classification of Nautilus, maybe? (7) | ||
| Lower classification of Nautilus, maybe? | The Telegraph Cryptic | 06 Mar 2024 |
| Model upset by small group with their own characteristics | ||
| Class within a class | Universal | 25 Jun 2016 |
| Class within a class | ||
| Group within a group | ||
| Class within a class | ||
| Grouping, as of blood |