| DURATION | Period of the French helping (8) |
| CLUE | You see the French helping the detective (4) |
| REIGN | ... of Terror, period of the French Revolution when supreme power was in the hands of the Committee of Public Safety and the Jacobins (5) |
| TERROR | 'The Reign of _'. period of the French evolution marked by numerous public executions of members of the nobility (6) |
| TERREUR | La ..., a period of the French Revolution following the creation of the First Republic when massacres and executions took place (7) |
| REIGNOFTERROR | What name is given to the period of the French Revolution, particularly known for its executions, between March 1793 and July 1794? (5,2,6) |
| TRIASSIC | The first period of the Mesozoic Era. It began 252 million years ago, at the close of the Permian Period. |
| TERTIARY | Old term for the period of geological time that constituted the Paleogene and the Neogene periods of the Cenozoic Era (8) |
| JURASSIC | Period of geological time, the middle period of the Mesozoic era (8) |
| EOLITHIC | Of the earliest period of the Stone Age (8) |
| DEVONIAN | Fourth period of the Palaeozoic era, sometimes called the 'Age of Fishes' (8) |
| CAMBRIAN | The older Palaeozoic period of the Welsh (8) |
| SEASONAL | Related to the period of the year (8) |
| SILURIAN | Geologic period between the Ordovician and Devonian periods of the Palaeozoic era (8) |
| RUSHHOUR | Period of the day when large numbers of people are travelling to or from work (4,4) |
| INTERACT | Link period of the year after leader goes with a court (8) |
| FULLMOON | Period of the lunar cycle associated with werewolves (4,4) |
| STONEAGE | Time period of "The Flintstones" (2 words) |
| QUARTERS | Where to stay for long periods of the year (8) |
| DESERVING | Warranting of French helping (9) |
