Possible Clues:

• Closely follow artist, leaving son to pontificate
• Make absolute assertions as scoundrel -- friend is being taken in
• It's 'imself that's following the canine 21 across and be positive
• Lay down the law that one may make this dogged
• Lay down the law, and make something to be laid down on the floor for the dog of it too
• To lay down the law is enough to make one bitchy, it seems