Possible Clues:

• Construction machine
• Big shot with mansion and a chauffeur
• Greek character was first to water a ram
• Very heavy stroke heaped above waterway
• Big blow that enabled Joshua to cross the Jordan?
• Machine which knocks stakes into the ground
• At bottom of mound, club's needed for powerful shot
• Forceful blow
• Noisily I establish support — quietly I directed the flow
• Machine for knocking heavy stakes into the ground