Possible Clues:

• Sat all twisted to be on the horse to be on the horse like this
• Standing over with tirades
• Standing over amid tirades
• With legs apart, emitting tirades
• A little right turn in a side one foot either side
• On horseback, perhaps
• Pace this one foot either side
• Pace, but not of the sidesaddle
• Not beginning final journey on horseback, perhaps
• It dares to be with legs wider apart