Related Clues:
- YTD part
- With 33-Across, anagrams and puns (or parts hidden in 17-, 24-, 44- and 51-Across)
- It starts with a celebration
- Passage
- Certain cycle
- Revolution duration
- Idiom, e.g.
- 1984, e.g.
- Junior or senior, e.g.
- Part of Y2K
- Orbital period
- Revolutionary period?
- Imposing nest
- Revolution time
- Osprey's abode