Possible Clues:

• Steer in a different direction
• Arrest
• Discourage grass springing up around town's entrance
• Prevent from progressing
• Put off detective writer, but not getting cross
• Prevent browsers chewing top of tree
• Scare off animals round edge of forest
• Cleaner to hearten lady? Quite the opposite
• Try to prevent grazing animals crossing top of track
• Check temperature inside animal