Possible Clues:

• Guerrilla leader overwhelming European port for so long
• Shout encouragement, leading one nil for so long
• Choir managed to hold repeated note for so long
• See you check always before beginning to invest offshore
• European visiting revolutionary South American city for so long
• What to say when one's off food and drink? "I'll have nothing"
• 'À bientôt,' across the Channel
• Leeds leave-taking
• "Toodles"
• Brit's bye-bye