Bandage the first of the wounds in frantic haste (6)
I believe the answer is:
swathe
'bandage' is the definition.
(swathe is a kind of bandage)
'first of the wounds in frantic haste' is the wordplay.
'first of' says to take the initial letters.
'in' indicates putting letters inside.
'frantic' indicates anagramming the letters (I've seen this in other clues).
The first letter of 'wounds' is 'w'.
'haste' with letters rearranged gives 'sathe'.
'w' going inside 'sathe' is 'SWATHE'.
'the' acts as a link.
(Other definitions for swathe that I've seen before include "Wrap; bandage" , "Broad strip (land)" , "Row or path, of grass perhaps, when it is mown" , "Wrap in several layers" , "Wrap; a cut strip" .)