Related Clues:

• The "O" in SRO
• Glitterati, e.g.
• Like hens' teeth, so to speak
• Like a 1909-S VDB penny
• Chophouse order
• Word on a sale sign
• In short supply
• Irritated state
• Not well done
• Top players
• The very best
• Sans sibs
• Still mooing, so to speak
• "It's ___ a paper moon ..."
• Preferred few