Modernise highway exit to accommodate electric vehicle (6)
I believe the answer is:
revamp
'accommodate electric vehicle' is the definition.
'revamp' can be an answer for 'accommodate' (thesaurus). I am not sure about the 'electric vehicle' bit.
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for revamp that I've seen before include "Give new form to" , "Give makeover to" , "Refurbish" , "face-lift" , "get in better shape" .)