Related Clues:

• Shelter
• Suspect's explanation
• One might stand up in court
• Suspect eliminator
• Explanation
• Crook's cover
• Gladiator's protection
• Exculpatory evidence
• Conceal from danger
• Innocence indicator
• Protective covering
• It eliminates suspects
• It should be airtight
• Saving yarn?
• Out, of sorts?