Possible Clues:

• Mixture of different elements
• Mixture (for dental fillings)
• Mixture; mercury alloy
• Publication priest set up that's mercurial?
• Mixture of molten rock thrown up around US city
• Ace leaves Spanish port in the morning with alloy
• Dental mixture
• Molten rock goes skywards carrying aluminium alloy in liquid form
• A largely masculine activity mostly producing alloy
• Fusion