It needs a driver to enter the wood (5)
I believe the answer is:
screw
This might be a double definition.
'it needs a driver to enter' is the first definition.
The definition suggests a singular noun which matches the answer.
'wood' is the second definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'the' acts as a link.
Can you help me to learn more?
(Other definitions for screw that I've seen before include "Apply backspin (snooker)" , "wages" , "Pay" , "Take advantage of" , "Threaded fixer" .)