The term 'high flier' can be defined by the following crossword solutions: KITE (4 letters), JET (3 letters), EAGLE (5 letters), PLANE (5 letters), SST (3 letters), ICARUS (6 letters), and BOXKITE (7 letters). A high flier is someone or something that is able to fly at a very high altitude, such as a KITE, JET, EAGLE, PLANE, supersonic transport (SST), or the mythical figure Icarus. The term can also refer to a boxkite, which is a type of KITE that is made from two or more boxes connected together.