8 down
How
Tom
sees
road
safety
feature
(4,3)
hints
0
checks
0
hints
The whole clue is the definition (& lit or double definition).
How the clue works
This is a double definition. Road safety feature gives CATS EYE, the reflective road studs used to mark lanes. How Tom sees also works — Tom is a tomcat, so a cat's eye is literally how Tom sees the world. Two meanings neatly joined together.