Fool's hoarding high-explosive gear (7)
I believe the answer is:
clothes
'gear' is the definition.
(I've seen this before)
'fool's hoarding high-explosive' is the wordplay.
'fool's' becomes 'clots' (I've seen this in other clues).
'hoarding' indicates putting letters inside.
'high-explosive' becomes 'he' (abbreviation for high explosive).
'clots' enclosing 'he' is 'CLOTHES'.
(Other definitions for clothes that I've seen before include "dresses" , "Gear" , "Items of apparel" , "Raiment" , "Worn items" .)