A hangglider is an aircraft that is propelled by the wind and is designed to soar through the air. It is a type of unpowered aircraft, which means it does not have an engine or motor. The term 'hangglider' is derived from the fact that the pilot hangs in a harness beneath the glider's wing. The crossword solution for this term is 'soarer, ' which accurately describes the way a hangglider moves through the air.