Hike in electric vehicle parking (5)
I believe the answer is:
tramp
'hike' is the definition.
(synonyms)
'electric vehicle parking' is the wordplay.
'electric vehicle' becomes 'tram' (I've seen this before).
'parking' becomes 'p' (abbreviation on road signs).
'tram'+'p'='TRAMP'
'in' acts as a link.
(Other definitions for tramp that I've seen before include "Disreputable wanderer" , "Walk heavily like hobo" , "Take a walk" , "Walk noisily; vagrant" , "Vagrant - cargo ship" .)