Possible Clues:

• Exciting skinny type in gamble will certainly provide cover for one's retirement when the heat's on
• Charged for empty net with top missing - that's bound to put the heat on someone undercover
• Thrilling to cover heated affair in bedroom perhaps
• Dynamic sweeping won't keep you warm during power cut
• What may offer an element of comfort at the end of the day
• Circle bleak tent, shivering - this might warm you up
• It uses current provision for comfortable retirement
• It makes for a comfortable retirement
• Provider of extra bed heat
• One's currently employed in bed?