Related Clues:

• Karl —; Groucho —
• A period of illness here and there
• Border crossing over here and there
• ... the greatest! About right for a natural comedian
• Founder of communism
• Almost a fight
• Active on all sides and in opposite direction
• Some beverages
• Some soft-drink options
• Karl, Richard or Harpo
• "___ face!"
• Run into Weber or another economist
• Concerning a boxing match
• Jack in? Not exactly
• Month to vote for Communist