Related Clues:

• Scoff about dishonest chap
• One may be compulsive
• Trust buster
• One failing a polygraph
• One telling little lies
• Common courtroom shout in whodunits
• Big fibber
• Complain bitterly about fibber
• Unreliable narrator
• No honest fellow, he
• Produces fiction with same characters in 3 down
• Pinocchio, often
• One covering tracks, perhaps
• Word repeated before 'pants on fire!'
• One who may need an alibi