Related Clues:
- Driver's license info
- Holiday shorthand
- Widespread b-day celebration
- 16-Across, briefly
- Present occasion, informally
- Brief cause for celebration, and this puzzle's title
- Short holiday
- Present day, briefly
- $hopping season?
- Lennon/Ono's 'Happy ___ (War Is Over)'
- Big day for 1 Across
- The present day?
- ''Do not open til ___''
- Yuletide, in ads
- Gift time, briefly