Possible Clues:

• Driver that goes with the flow
• Revolutionary device that will not work when it is dry
• What turns on current source of power
• Wet and raw, spinning on bank? It may be
• Revolutionary device in current power generator
• Revolver used in the race
• Revolver used in race to attain power
• Machine activator that's revolutionary in the current situation
• It goes round in the race
• It turns on current power