Related Clues:

• Singular
• Formal pronoun
• Top-of-the-chart number
• Telephone button that lacks letters
• Bill in a till
• Point value in Scrabble of every letter in this puzzle
• Start for step or stop
• Lunch hour
• Traditional fastball sign
• Start of long-distance dialing
• ''A Chorus Line'' tune
• Word before ''Blast off!''
• Combined
• Word surrounding ''on'' and ''by''
• Single word