Explosive made with tiny fragments (8)
I believe the answer is:
dynamite
'explosive' is the definition.
(dynamite is an explosive)
'made with tiny fragments' is the wordplay.
'with' says to put letters next to each other.
'fragments' indicates anagramming the letters (the fragments are put back together differently).
'made' after 'tiny' is 'tinymade'.
'tinymade' with letters rearranged gives 'DYNAMITE'.
(Other definitions for dynamite that I've seen before include "might one be blown away by it?" , "Fantastic" , "Nitroglycerine explosive" , "May end it with explosive" , "Powerful explosive" .)