Exchange short article for bandage (6)
I believe the answer is:
swathe
'bandage' is the definition.
(swathe is a kind of bandage)
'exchange short article' is the wordplay.
'exchange' becomes 'swap' (swap is a kind of exchange).
'short' means to remove the last letter.
'article' becomes 'the' (the 'definite article' part of speech).
'swap' with its last letter removed is 'swa'.
'swa'+'the'='SWATHE'
'for' is the link.
(Other definitions for swathe that I've seen before include "Wrap in bandages - broad mown band" , "Swaddle - cut strip" , "row after reaping" , "Wrap in several layers" , "put bands around" .)