Soldier dies after dropping ecstasy in Heaven (8)
I believe the answer is:
paradise
'heaven' is the definition.
(I know that paradise is a type of heaven)
'soldier dies after dropping ecstasy' is the wordplay.
I cannot really understand how this works, but
'soldier' could be 'para' (short for paratrouper) and 'para' is present in the answer.
an anagram of 'dies' is 'dise' which is present in the answer.
No letters remain.
This explanation may well be incorrect...
'in' acts as a link.
(Other definitions for paradise that I've seen before include "heavenly destination" , "Utopia" , "Sensual garden" , "Heaven; Eden" , "Idyllic place" .)