Hide high explosive in later confusion (7)
I believe the answer is:
leather
'hide' is the definition.
(an animal hide)
'high explosive in later confusion' is the wordplay.
'high explosive' becomes 'he'.
'in' indicates putting letters inside.
'confusion' indicates an anagram.
'later' is an anagram of 'leatr'.
'he' going into 'leatr' is 'LEATHER'.
(Other definitions for leather that I've seen before include "Thrash" , "calf" , "Animal skins" , "Fabric" , "Material made from animal skin" .)