| Clue | Source | Date |
|---|---|---|
| Explorer of caves (12) | ||
| Expert in caves (12) | ||
| Person who explores caves (12) | ||
| Loose piglets startled caveman? (12) | ||
| Person who studies caves (12) | ||
| Footballer in alone, meaning he plumbs the depths | The Telegraph Cryptic | 06 Dec 2016 |
| Pigs let loose (anag) — one who studies caves | The Guardian Quick | 29 Jul 2016 |
| Piglet's loose unfortunately – one going underground |