Bury explosive Tory tales (3,2,4)
I believe the answer is:
lay to rest
'bury' is the definition.
(synonyms)
'explosive tory tales' is the wordplay.
'explosive' is an anagram indicator.
'tory'+'tales'='torytales'
'torytales' with letters rearranged gives 'LAY TO REST'.
(Other definitions for lay to rest that I've seen before include "Finally solve" , "Maybe put in shroud" , "Bury" , "Inter" .)