The term 'high flyer' can be defined by three crossword solutions: KITE (4 letters), AIRPLANE (8 letters), and AIRMAN (6 letters). A KITE is a toy that is flown in the air, usually with a string attached to it. An AIRPLANE is a heavier-than-air aircraft powered by propellers or jet engines. An AIRMAN is a person who operates an aircraft. All three of these terms refer to someone or something that is capable of flying high in the sky.