Duck a car! (5)
I believe the answer is:
dodge
This clue is a double definition.
'duck' is the first definition.
(I know that duck can be written as dodge)
'a car' is the second definition.
(I've seen this before)
(Other definitions for dodge that I've seen before include "Take evasive action" , "Ploy" , "Avoid; cunning trick" , "Get out of" , "Avoid or evade by bodily movement" .)