Drive mile crazily without parking (5)
I believe the answer is:
impel
'drive' is the definition.
(I've seen this before)
'mile crazily without parking' is the wordplay.
'crazily' indicates an anagram.
'without' is an insertion indicator ('without' can be similar in meaning to 'outside').
'parking' becomes 'p' (abbreviation on road signs).
'mile' is an anagram of 'imel'.
'imel' placed around 'p' is 'IMPEL'.
(Other definitions for impel that I've seen before include "Urge or force to action" , "Egg" , "Make" , "Drive or coerce" , "Oblige" .)