Related Clues:

• O.K. to do
• Not prohibited
• De jure
• Not a crime
• With 70-Down, skilled lawyer
• Alberta community
• Conforming to the rules
• Size of paper
• ''War of the Worlds'' invader
• Bar-related
• Paper size larger than letter
• Letter alternative
• Sci-fi invader
• Approved by the courts
• Within the letter of the law