Related Clues:
- Big night for high schoolers
- Average gestation period for a dolphin
- Dance with a theme
- Daily planner's length
- Year-end dance
- Length of time between anniversaries
- Young, eager and ready when starting term
- Teen soiree
- Finally play organ for a period of time
- Yankee needing attention in eg 1944
- Senior year dance
- Calendar interval
- Time that is long needing to be shortened
- Senior's dance
- It's "new" every 1/1