| OLIGOCENE | Rocks cooling Earth repeatedly from around 30 million years ago |
| NILE | River believed to be more than 30 million years old |
| RATATAT | Revised Maastricht Treaty lacking chemistry - heard repeatedly from knockers (3-1-3) |
| YOYO | To change repeatedly from one position to another (2-2) |
| BREADTHS | The bards travelled repeatedly from side to side (8) |
| STRAFED | Saint fared badly and attacked repeatedly from low-flying aircraft (7) |
| ELAND | Coat shorn repeatedly from Icelandic animal (5) |
| ETTE | Suffix with Rock, around 30 Rock |
| AGO | A month ___ (around 30 days in the past) |
| TUBA | Brass instrument that typically weighs around 30 pounds |
| GENERATION | People of the same group are around thirty years (10) |
| ASSAM | State in north-east India (30,289 sq miles; pop about 30 million) (5) |
| ASHTON | Choreographer and danseur with a repertoire of around 30 ballets including Facade, A Wedding Bouquet, Birthday Offering and A Month in the Country (6) |
| STRATOPAUSE | Level of the atmosphere forming the boundary between the stratosphere and the mesosphere, around 30 miles above sea level (11) |
| AGATHA | Forename of the apothecary assistant- turned-novelist who used poison to fictionally dispatch around 30 of her characters, including the victim of a "mysterious affair at Styles" (6) |
| NEWYEAR | Time around thirty first of December |
| EFFEMINATE | Wasted around thirty seconds with a sissy? |
| THRIFTY | Around thirty outside French capital are careful with money (7) |
| ASSAMESE | Citizen of a state in north-east India (30,285 sq miles; pop about 30 million (8) |
| PANGAEA | Postulated supercontinent that split into Laurasia and Gondwanaland around 200 million years ago; from Greek, 'all earth' (7) |