Related Clues:

• So long, in Soho
• In a while
• 'Later'
• By and by
• 'Hasta luego!'
• 'Ciao!'
• Procrastinator's word
• See 42-Across
• 'So long!'
• 'See ya'
• 'Cheerio!'
• Procrastinator's promise
• Not right now
• Going away statement
• 'Ta-ta!'