Dislike very much (4)
'dislike very much' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for abhor that I've seen before include "Execrate" , "Despise" , "Abominate" , "Find disgusting" , "cannot stand" .)
(Other definitions for hate that I've seen before include "Passionately dislike" , "Odium" , "Intense emotion opposite to love" , "Strongly dislike" , "Intense dislike" .)
(Other definitions for detest that I've seen before include "Having a loathing" , "Dislike thoroughly" , "Really dislike" , "Deplore" , "Not like" .)