Model 3 automaker (5)
I believe the answer is:
tesla
'model 3 automaker' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tesla that I've seen before include "Inventor" , "American scientist" , "Nikola ---, electricity pioneer" , "Physics unit" , "SI unit; steal (anag.)" .)