Possible Clues:

• Make use of a cover, by the sound of it
• It sounds as if, on the face of it, it may be some help (5)
• Help one encased in rising lava
• On the face of it, it may be of some help, by the sound of it
• Benefit from molten rock surrounding one when climbing
• To suffer following a victory will help
• To no ___ (purposelessly)
• Will it help to have one's face covered with it, by the sound of it?
• Benefit for a depressed area reportedly
• A few have sickness benefit