Related Clues:

• Start for step or stop
• Lunch hour
• Traditional fastball sign
• Start of long-distance dialing
• It's nothing at all
• ''A Chorus Line'' tune
• Word before ''Blast off!''
• Naught
• Combined
• Word surrounding ''on'' and ''by''
• Single word
• Half and half?
• Mostel, of ''The Producers''
• Sometimes it's for the money
• Ground ---