Go and deviate (4)
I believe the answer is:
turn
I believe this is a double definition.
'go' is the first definition.
(as in one's go or turn in a game)
'deviate' is the second definition.
(I know that deviate is a more specific form of the action turn)
'and' acts as a link.
(Other definitions for turn that I've seen before include "Twist; go" , "Move around an axis, or change" , "See 19" , "Distinctive expression" , "Start" .)