Related Clues:

• Later
• 'Primary Colors' author, for short
• Error indicator
• Presently
• In a while
• Like most limericks, in short
• Order to attack, with 'on'
• Like most graffiti: Abbr.
• By and by
• Set a setter (on)
• Prolific poet?
• 'Mr. X'
• Mr. X
• Canine command
• Bartlett's abbr.