Related Clues:

• 'Bye!'
• 'So long'
• 'Ciao'
• Parting words
• Goodbye
• 'Later!'
• 'Later'
• 'So long!'
• 'Ta-ta!'
• With 27-Across, holiday celebrators' farewell
• 'Toodle-oo!'
• 'Bye now'
• Cheerio
• "So long!"
• "Later"