Related Clues:

• Try to catch rook that hurt amusing brother
• The third of the Marx brothers
• Nickname by which Julius Marx was better known
• Mustachioed Marx brother
• The Marx brother with spectacles and a cigar
• Spoil vote, as one looking for revolution?
• Brothers known for "Duck Soup" and "Animal Crackers"
• Hugo or Charlie’s eccentric comic brother
• Star of Duck Soup (1933)
• As filler, shortly check on old comedian
• Author of Das Kapital
• Revolutionary starts to make another red xylophone
• Communist score read out?
• Marx's work inspiring leader of revolution that's uncomfortable
• Third-born Marx brother