Possible Clues:

• Following 50500, perhaps, can nothing but what's hot come out of this?
• It has an explosive opening!
• From this comes the lavatory for no Tory
• It erupted with the end of Balaclava
• eg Mount Etna
• A fissure in the earth's crust with molten rock
• Can nothing at last be so hot as the outcome of this?
• Does coal come out of this during Nov? (7)
• Exploding mountain
• The cool van always loses its cool