The term 'Half a Dance' CAN be broken down into two crossword solutions: CHA and CAN. CHA is an abbreviation for the CHA-Cha, a Latin American dance that originated in Cuba in the 1950s. It is a partner dance that is characterized by its syncopated rhythm and Cuban motion. CAN is an abbreviation for the Canadian Dance, which is a style of folk dance that originated in Canada in the late 19th century. It is a lively, energetic dance that is often accompanied by fiddle music.