Keep away from car crash, having taken time off (4)
I believe the answer is:
shun
'keep away from' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for shun that I've seen before include "'Eschew, avoid (4)'" , "Persistently avoid" , "Parade-ground language" , "Avoid contact" , "Deliberately have no contact with" .)