Darned things in boxes? (5)
I believe the answer is:
socks
This clue is a double definition.
'darned things' is the first definition.
(I've seen this in another clue)
'boxes?' is the second definition.
(I've seen this in another clue)
'in' acts as a link.
(Other definitions for socks that I've seen before include "Short hosiery" , "Hits; some clothing" , "usually come in pairs" , "Foot garments" , "Dresses" .)