| PAXROMANA | Term for the period of relative tranquillity and stability from the reign of emperor Augustus to Marcus Aurelius (3,6) |
| 4AD | Record label for acts like Cocteau Twins and Bon Iver (and a year in the reign of Emperor Augustus) |
| STAGNANT | Sluggish man who's getting married with relative tranquillity at first |
| RESTAURANT | Given tranquillity and ambience, books table here? |
| EQUILIBRIUM | Stability from self-possession |
| PEACE | Tranquillity: - and quiet |
| ROOTS | A plant's organs growing under the ground, used for anchorage and stability as well as the conduits through which moisture and nutrition are taken in (5) |
| SENSEOFSECURITY | Feeling of safety and stability that mutually assured destruction can't really create |
| OFFDAY | Period of relative ineffectiveness |
| BROKERAGE | Business's period of relative impoverishment |
| BALANCE | Bachelor boy showing poise and stability (7) |
| TERTIARY | Old term for the period of geological time that constituted the Paleogene and the Neogene periods of the Cenozoic Era (8) |
| JAZZAGE | Term for the period in the U.S. between the end of World War I and the start of the Depression (4,3) |
| REIGNOFTERROR | Term for the period of massacres and public executions during the French Revolution, 1792-1794 (5,2,6) |
| OBELISK | The Flaminio ---, taken to Rome from Heliopolis by Augustus to mark the anniversary of the conquest of Egypt (7) |
| MORN | Literary term for the period of time between sunrise and noon (4) |
| COCOBUTTERA | Informal term for the period of time when comedian O'Brien had a historically significant bottom? |
| TSAR | Title of the Russian emperors from the reign of Ivan IV until Nicholas II (4) |
| DUSK | Word, from the Old English "dox" for "dark-haired" or "swarthy", for the period of gloaming or glooming crepuscular twilight directly following sunset (4) |
| TUDOR | Royal house from the reign of its first monarch Henry VII to its last, Elizabeth I (5) |
