| TUMULI | Visible remains of ancient undertaking (6) |
| TUMULUS | Visible relic of ancient undertaking (7) |
| HUMERI | Visible remains of an ancient undertaking? (6) |
| IDA | Which peak overlooks the remains of ancient Troy? (3) |
| RUINS | Spoils the remains of ancient buildings (5) |
| ARCHAEOLOGIST | Scientist who studies the remains of ancient cultures (13) |
| NICOLAUSSTENO | Danish geologist who first realised that fossils are the remains of ancient living organisms (8,5) |
| GAMBLE | Risky undertaking for head of geography before stroll (6) |
| PLEDGE | Page in front of shelf showing undertaking (6) |
| FELLOW | Word, from "one who lays down money in a joint undertaking", for an associate, comrade, confrere, partner or peer; one of a pair, aka a mate or companion; or, any man or boy (6) |
| FAVOUR | Advocate's early signs of fearlessness and vision, often undertaking risks (6) |
| AFFIRM | A business undertaking, we hear, to make a declaration (6) |
| HEARSE | Here's a peculiar vehicle for the undertaking (6) |
| AFFAIR | A firm start and honest business undertaking (6) |
| MISERE | Undertaking to take no tricks in a card game (6) |
| ENTOMB | Perform a grave undertaking (6) |
| ACTION | Undertaking carried out in coat (6) |
| SEEYOU | Farewell for leaders of corporate undertaking, we hear (3, 3) |
| ERRAND | Fool's ____ , a fruitless undertaking (6) |
| PICNIC | Kings escaping from select prison is easy undertaking (6) |
