The term 'Rangers and Corsairs' refers to two distinct groups of people. The Rangers were a group of British soldiers who fought in the American Revolutionary War, while the Corsairs were a group of French privateers who operated in the Mediterranean Sea during the 16th and 17th centuries. The crossword solution for this term is 'Edsels, ' which refers to a brand of automobile manufactured by Ford Motor Company from 1958 to 1960.