Possible Clues:

• Prefix with science or intellectual
• Fake subs travelling up into river
• So-called
• Quack doctor used Post Office boxes
• Pretender takes up work without charges
• False note commencing our community party
• It¿s not genuine for Post Office to cover dues that are returned
• 13 bread-maker on reservation, quite possibly? That's false!
• Private secretary with European Union party is phoney
• Sham's manufacturing us dope