Crash top-notch Tesla with me inside (7)
I believe the answer is:
plummet
'crash' is the definition.
(thesaurus)
'top-notch tesla with me inside' is the wordplay.
'top notch' becomes 'plum' (I can't explain this - if you can you should give a lot more credence to this answer).
'tesla' becomes 'T' (scientific unit).
'with' is a charade indicator (letters next to each other).
'inside' is an insertion indicator.
'plum'+'t'='plumt'
'plumt' going around 'me' is 'PLUMMET'.
Can you help me to learn more?
(Other definitions for plummet that I've seen before include "Fall headlong" , "Fall like a stone" , "Descend" , "Drop vertically and fast" , "Fall at high speed" .)