Possible Clues:

• Can the medicine man get round to being so forbidding?
• Over-riding no vote
• Refuse to allow doctor round
• Does this forbid you to get the medical man round for your pet?
• Cast over-riding vote
• Scrutinise nothing in negative result
• Film breaking very old ban
• Overrule, forbid
• Does this prevent you from getting the doctor round for your pet?
• Nix, à la Nixon