Flyer; guide (5)
I believe the answer is:
pilot
I believe this is a double definition.
'flyer' is the first definition.
(I know that flyer can be written as pilot)
'guide' is the second definition.
(pilot can mean a navigator)
(Other definitions for pilot that I've seen before include "Navigate" , "Plane driver" , "One licensed to fly" , "Aviator" , "experimental programme" .)