Hits with underwear (5)
I believe the answer is:
socks
This clue could be a double definition.
'hits' is the first definition.
(socking is a kind of hitting)
'underwear' 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?
'with' is the link.
Can you help me to learn more?
(Other definitions for socks that I've seen before include "Woollen footwear or slang punches" , "Short hosiery" , "Dresses" , "Items of hosiery" , "Hits; some clothing" .)