Possible Clues:

• Went at a fast gait
• Moved fast like a horse
• Went at a very fast gait
• A peg doll (anag.)
• Everybody in work exercise day ran
• Sped like a horse
• Went quickly by horse
• Rode fast
• 'I - - , Dirck - - ...' (Browning)
• Hurried on horseback