Possible Clues:

• Scarper (informal)
• Leg it
• Fuss first to last over sprinter, possibly Bolt
• Out of order, a nun turning to flee
• Nuts near round bolt
• Leave restaurant or shop quickly without paying
• Nun adorer may escape on the trot
• Zambezi cataract
• Abscond (colloq.)
• In slang, leave hastily - on the trot?