Related Clues:

• 'So long!'
• 'See ya'
• 'Cheerio!'
• Procrastinator's promise
• Not right now
• 'Ta-ta!'
• 'Toodles!'
• In the future
• Informal sign-off
• Word to a gator?
• Not now
• ''I'm outta here''
• 'Ta-ta'
• 'I'm outta here!'
• See 65-Across