Car lover follows motorists round cliff, occasionally (4,5)

'car' is the definition.
(I have seen 'Italian car' mean 'alfa romeo' so perhaps 'car' could also mean 'alfa romeo')

'lover follows motorists round cliff occasionally' is the wordplay.
'lover' becomes 'romeo' (I've seen this in another clue).
'follows' is a charade indicator (letters next to each other).
'motorists' becomes 'AA' (Automobile Association).
'round' indicates putting letters inside.
'occasionally' means one should take alternating letters (letters taken at regular intervals or occasions).
The alternate letters of 'cliff' are 'lf'.
'aa' placed around 'lf' is 'alfa'.
'romeo' after 'alfa' is 'ALFA ROMEO'.