Related Clues:

• Cheery send-off
• "Bye now!"
• Spies connected with ring for so long
• 'Don't be a stranger'
• 'Later, bitches!'
• Copper reported parting words
• "Later, dude"
• 'Bye for now'
• "Bye-bye," to a Brit
• 'TTFN'
• "Farewell, Luigi!"
• Bit of scheduling luck at a tournament
• "So long, signore"
• "It's been real, dahling"
• Gets one through when opponent fails to turn up to say farewell