Related Clues:

• Best of the best
• Black cat, perhaps
• Cream-of-the-crop
• Top-of-the-line
• Type of child without siblings
• Aristocratic
• Merely
• Hardly ever seen
• -
• The in crowd
• Not to be had
• Bibliophile's label
• Garfield, to Jon
• Penthouse centerfold
• One-in-a-million