Related Clues:

• No proponent
• Scarecrow, to Batman
• One to counter
• Gulliver in Lilliput, e.g.
• Ill-wisher
• Source of conflict
• Hatfield, to a McCoy
• Titan
• Sentry's classification
• See 25 Down
• "Who goes there, friend or ___?"
• Cassius, to Caesar
• "Jack and the Beanstalk" baddie
• Jumbo-sized
• Grant, to Lee