| Answer | Crossword Clue |
|---|---|
| SIXWEEK | Like a certain period of burrowed time? |
| DATED | Of a certain period. |
| DECADE | A certain period of years. |
| HORAL | Of a certain time period |
| AEON | Period like a millennium |
| BOOMORBUST | Like a period marked by economic extremes |
| INCUBATIVE | Like the period when a hen sits on eggs |
