Related Clues:

• Casual parting ... and a hint to this puzzle's four longest answers
• 'Toodles,' in Twickenham
• Jewel "Down ___"
• Say goodbye in Trieste to art taken from Croatia
• Brighton "Bye!"
• Thanks and thanks again so cheerio
• A form of "goodbye"
• Bye, in Milan
• Bolognese bye-bye
• Parting syllables
• Agents working with intelligence and love to provide farewell
• Posh "Peace!"
• Brit's "Bye!"
• See you later in Rome?
• Bruce "But when I __ __ walkin' with him down along the strand"