Related Clues:

• Exit
• Leaving
• Straying
• Starting out
• Divergence
• "Bon voyage" occasion
• A going away
• Act of leaving
• One of a sort of leaves?
• Would this be leaving trade pure?
• Going on leave
• Leave with a bit of the old city in the river
• Exodus
• Not the usual outbound journey?
• Variation from the expected put reader off