Related Clues:

• Farewell, in 55 Down
• "Later, dahling!"
• "Sayonara!"
• It renders a seed inactive
• Venetian valediction
• Exit line
• 'g2g' follower
• So long, in Siena
• Goodbye, in Italy
• So long, in 43-Across
• "Bon voyage!"
• 'See ya,' in Sorrento
• "Farewell, cara mia"
• "Bye-bye," in Bologna
• "See ya," in Sorrento