Cause to change direction (6)
I believe the answer is:
divert
'cause to change direction' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for divert that I've seen before include "Send in another direction, or entertain" , "Entertain or sidetrack" , "Delight" , "Entertain or turn from course" , "Amuse, or turn from normal course" .)