Related Clues:

• Rose, Lily or Iris, e.g.
• Tag datum
• Pet-store purchase
• Well-known
• ''What's in a ---?'' (''Romeo and Juliet'')
• Sobriquet
• Tag line?
• ''A Horse With No ---''
• It may say 'Hello'
• Convention handout
• Dogtag info
• With 50- and 53-Down, apt title for this puzzle
• Finger
• Handle holder
• Convention goer's ID