Related Clues:

• "Silent Night," e.g
• 'Joy to the World,' for one
• 'Angels From the Realms of Glory,' e.g
• Time to stuff stockings
• 'Tis the season
• 'O Come, All Ye Faithful,' e.g
• With 63-Across, extra holiday pay ... or what's in 17-, 22-, 34- and 45-Across?
• Refusal for the Spanish at Christmas
• The festive season harms tics, oddly
• Liam's brother in Oasis
• December tune
• Knighted Coward
• "Blithe Spirit" author Coward
• "Joy to the World," e.g
• "Adeste Fideles," e.g