Fastened by the driver (7)
I believe the answer is:
screwed
'fastened' is the definition.
(screwing is a kind of fastening)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for screwed that I've seen before include "tight?" , "in serious trouble" , "Swindled; twisted into place" , "Fastened - cheated - drunk" , "secured into position" .)