Considerable violence or hate (5)
I believe the answer is:
abhor
'hate' is the definition.
(abhorring is a kind of hating)
'considerable violence or' is the wordplay.
'considerable violence' becomes 'abh' (I can't explain this - if you can you should believe this answer much more).
'abh'+'or'='ABHOR'
Can you help me to learn more?
(Other definitions for abhor that I've seen before include "Abominate" , "Despise" , "Find horrible" , "Dislike very much" , "Can't bear" .)