Delivered in crates, last electric car (5)
I believe the answer is:
tesla
'electric car' is the definition.
(I've seen this in another clue)
'delivered in crates last' is the wordplay.
'delivered in' indicates the answer is hidden within the clue.
'TESLA' is hidden within 'crates last'.
(Other definitions for tesla that I've seen before include "electrical unit" , "Unit of magnetic flux density" , "Physics unit" , "Californian company specialising in electric cars" , "American scientist" .)