A striking thing to wear? (4)
I believe the answer is:
sock
This could be a double definition.
'a striking thing' is the first definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'to wear?' is the second definition.
(sock is a kind of wear)
Can you help me to learn more?
(Other definitions for sock that I've seen before include "Woollen footwear" , "Strike, hose" , "impact" , "One worn" , "bash" .)