Possible Clues:

• The underworld, to Hades
• Field of activity or interest
• That kingdom is grand, actually
• Royal domain in actual miles
• Genuine male domain
• Genuine leader of men in province
• Genuine and grand, as a rule
• Actually, the thousand is genuine as a rule
• If one is 3 down, this is what one has - a thousand that's genuine
• Domain of actual money