Spooner's attractive staff - a driving hazard (7)
I believe the answer is:
pothole
'hazard' is the definition.
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for pothole that I've seen before include "Water-eroded cave" , "Sorrow" , "Narrow cave" , "Deep water-made cave, pit in road" , "that can be problem when driving" .)