Possible Clues:

• Looking embarrassed, slipping up about hard, misleading clue
• Irrelevant topic
• Maybe left hard, devious and misleading clue
• Not a ruddy trout, but that's deceptive
• It's just a shade fishy to put one off with it
• What makes the ruby on her finger so fishy is that it's there only to distract you
• Distraction gets wild herd straying
• Diversion intended to distract attention from the main issue
• Fake footprint at the murder scene, e.g.
• Purposeful misdirection