Possible Clues:

• Slight residues
• Signs of harness?
• Kick these over to be insubordinate or reckless
• Are there any signs of harness for the hrse events at last?
• There's little sign of harness there
• Will this show signs of having been in harness?
• Does tec work
• What a good criminal avoids leaving
• Indications of harness for horses
• Little signs of different people coming after tea (6)