Related Clues:

• The never ending round
• Cycle - enclosure
• Ring - round
• Nothing - Japanese aircraft
• London Underground line represented in yellow
• Score of nought - nil
• "Beetle Bailey" simpleton
• Nothing, in a sports score
• Small and awkward to handle
• One goes after it
• It may be absolute
• Complete loser
• O for a group of friends, perhaps?
• Lowest of the low?
• In a roundabout way, old transport company holds onto church letterhead