Related Clues:

• Boiling byproduct
• Energy of second eleven maybe
• Moisture first traced in joint
• ... to cook baked meats (not for a 15,23 though!)
• Gas main cracked by time and misuse primarily
• Power for first of trains in line
• Old-fashioned term ultimately applied to new seat
• Old-fashioned engine-driver set out before morning
• Within dam there's a source of power
• Part of plant absorbing a liquid when it's hot
• Half past eight start in the morning creates a kind of pressure
• Momentum in second eleven
• Pre-digital power
• Southern group of sportsmen showing energy
• Watery vapour