Related Clues:

• Farewell, to 10-Across
• It's usually bid
• Farewell, at the French Open
• Paris version of "arrivederci"
• Toulouse "toodles"
• Farewell, somewhere
• So long
• Arrivederci kin
• Last word in Tours
• Natural depression
• Crooner Jerry
• Toulouse 'Toodle-oo'
• Where a stream may run
• Rill setting
• Goodbye in Gascony