Possible Clues:

• Book has the ability to offend for a start -- might one blow one's top?
• Ascending feature of Snowdon, a cloven peak, one gets hot
• Fiery mountain
• Source of lava
• One heated occasionally blowing top
• One is likely to blow one?s top on the radio to preserve order
• Mauna Loa or Stromboli, say
• One prone to blowing off steam
• Fiery mount
• New rock producer's refreshing vocal number