Related Clues:

• This extra is no greeting if it comes at the double
• One might go and say this at the double
• At the double at parting
• It's said to be good at parting for 22 down
• "See ya, Sophia"
• Such extra may come at the double on parting
• Fare well with such an extra double
• "Ta-ta" in Turin
• Farewell, in 55 Down
• "Later, dahling!"
• "Sayonara!"
• "Bye" in Barcelona
• It renders a seed inactive
• Venetian valediction
• Farewell, Rosita