Fixed things with the driver (7)
I believe the answer is:
screwed
'fixed' is the definition.
(screwing is a kind of fixing)
'with the driver' is the wordplay.
I cannot really see how this works, but
'with' could be 'w' (abbreviation) and 'w' is found within the answer.
The remaining letters 'screed' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'things' acts as a link.
Can you help me to learn more?
(Other definitions for screwed that I've seen before include "secured into position" , "Fastened - cheated - drunk" , "Tightened - fastened (together)" , "Spoiled" , "tight?" .)