Possible Clues:

• Freight man in whose unconscious 'vehicle' represents 'energy'?
• Drink ruined a grocer at sea — he does have loads on his mind
• Ship's officer therefore rings RAC up, following matter arising
• Ship's officer awfully spruce on ship
• Procure gas at sea for crew member
• Procure gas at sea for merchant navy officer
• Is it his job to make The Rolls run on board? (10)
• Owner's representative on merchant ship
• May he make the Rolls roll on board and look after it there? (10)
• Drink thus passed round vehicle for ship's officer