Possible Clues:

• Racehorses go tailless ahead of fish-eaters
• Sulky pullers
• Comedy family (rag-and-bone men) are caught inside
• Time scoundrels spread out to keep the swine on his toes
• Trigger's first with rogues Del and Rodney?
• 'Goody' about to catch 'baddy' -- they run at a moderate pace
• Horses needed by rag-and-bone men crossing river
• Horses moving along, though not on these
• Time scoundrels spread out keeping the swine on his toes
• Trigger's entrance with rogues Del and Rodney?