Possible Clues:

• Real gold in that case twinkling endlessly
• Real gold in that case -- it's up on top of cabinet
• True
• Real — hue intact (anag)
• Genuine article secured by relative, almost 100
• The real McCoy
• Genuine gold female found in loft, not the first
• Anagram in that clue omitting L? True
• Not a knockoff
• A hit tune performed before a hundred – it's the real thing