Current champion driver’s accessory? (9)
I believe the answer is:
cupholder
'champion driver's accessory?' is the definition.
'cupholder' can be an answer for 'champion' (someone who has won a cup). I am not sure about the 'driver's accessory?' bit.
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for cupholder that I've seen before include "Saucer" , "Champion; Ganymede" , "successful last year?" .)