Possible Clues:

• Waste energy and try to sell Trigger?
• Plug vainly away at course involving lashings of meat?
• Spooner's to follow mare that's bolted and pursue lost cause
• Hit by a late punch, maybe fight to no avail
• Lodgers, ahead of moves, pursue lost cause
• Waste one's time, and forge a shedload inaccurately
• Waste time promoting false god a horde constructed
• Revive a worn-out topic, like one coping with dishonesty?
• Sell an old man without energy heroin? Do so and waste time!
• Whip a late runner but achieve nothing