Possible Clues:

• "The Solid --- Cadillac"
• [50]
• Prospector's desire
• At start of 15 across, Limerick city director gets first prize
• Tartt's _finch, Fleming's _finger?
• Bond villain - and book and movie
• Andrew --, American singer-songwriter, son of Ernest -- and Marni Nixon
• Word before "standard" or "star"
• Deity keeps pound in metal
• Gee — ancient and precious stuff