Possible Clues:

• Alloy ingredients
• Gold, silver and bronze
• Those in half of 7 down missed deadline review to go into manuscript
• Mercury and magnesium, for two
• Tin and tungsten
• Criticise master rising to get gold and silver for example
• Bronze, iron, et al
• Gold and iron
• About 80% of the elements in the period table
• What mints work with