Related Clues:

• Suspect's best defence
• Cover story excellent for talking in liberal
• Name on a spy's passport, perhaps
• Story in a whodunit
• Proof of being elsewhere
• Cover of a kind
• Defence plea of many a libidinous character?
• It eliminates a suspect
• Liberal in first class as cover story
• Perhaps Clegg gets in great excuse
• Defensive story
• Excuse for unnatural sex act involving movement of women, perhaps
• Police blotter name
• Something to assume
• Out at a trial