Related Clues:

• 'Cheerio!'
• Procrastinator's promise
• Not right now
• Opposite of 61-Across
• Going away statement
• 'Ta-ta!'
• Socialite's 'bye'
• Cousin of 'ciao'
• Gallic goodbye
• Word of parting
• Polite goodbye
• 'Later, gator!'
• 'Toodles!'
• In the future
• 'So long, Pierre!'