Possible Clues:

• Change colours, perhaps, to hide electronic flaw in photo
• One travelling late, a shade before Amber picked up yours truly
• There's something fishy in bad whisky …
• Flight leaving late at night
• Portrait photographer's woe
• Calgary _______
• Rock bass, for one, found in airport late at night
• Flaw in photo -- apply colour again to cover origin of error
• Overnight flight from America carrying communist spy
• Overnight picture problem