It's driven home in a roundabout way (5)
I believe the answer is:
screw
This might be a double definition.
'it's driven' is the first definition.
(I've seen this in another clue)
'home in a roundabout way' is the second definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
Can you help me to learn more?
(Other definitions for screw that I've seen before include "Fixer; twist of paper" , "Take advantage of" , "shaft" , "Threaded pin" , "Kind of nail with spiral groove (5)" .)