Possible Clues:

• Volcanic spewings
• Volcanic matter
• Volcanic emissions
• Disrupting old community volunteers, Jack spouted stuff
• Volcanic spewings, e.g
• Etna's insides become black, containing cold lava etc
• Turn out article on volcanic matter
• Shock treatment by English judge leads to a matter being thrown out
• Material thrown out by volcano; ace jet (anag.)
• Throw out article on volcanic matter