The term 'Paine Product' is a reference to the American political philosopher Thomas Paine, who wrote influential works such as Common Sense and The Rights of Man. The crossword solution for this term is 'TRACT, ' which refers to a pamphlet or other short publication that is intended to present a particular point of view on a subject. Tracts are often used to spread political or religious messages, and were popularized by Thomas Paine in the 18th century.