Discharge exploding so deep (6)
I believe the answer is:
depose
'discharge' is the definition.
(thesaurus)
'exploding so deep' is the wordplay.
'exploding' indicates anagramming the letters.
'so'+'deep'='sodeep'
'sodeep' is an anagram of 'DEPOSE'.
(Other definitions for depose that I've seen before include "Remove from power or testify in court" , "Dismiss" , "Attest and force off a throne" , "Remove from power or bear witness" , "Remove from a high position" .)