To get there, I have to follow a car (6)
I believe the answer is:
arrive
'to get there' is the definition.
(I've seen this in another clue)
'i have to follow a car' is the wordplay.
'i have' becomes 'I've' (contraction of 'I have').
'to follow' means one lot of letters go next to another (some letters go after or follow others).
'car' becomes 'RR' (Rolls Royce).
'a'+'rr'='arr'
'ive' put after 'arr' is 'ARRIVE'.
(Other definitions for arrive that I've seen before include "Reach destination or succeed" , "Get there" , "emerge" , "Make it" , "Turn up" .)