Be repelled by both sides in dispute and subsequent trial (6)
I believe the answer is:
detest
'be repelled' is the definition.
I can't tell whether this defines the answer.
'both sides in dispute and subsequent trial' is the wordplay.
'both sides in' suggests removing the centre (only the side letters remain).
'and' is a charade indicator (letters next to each other).
'subsequent trial' becomes 'test' (synonyms. I am not sure about the 'subsequent' bit.).
'dispute' with its middle taken out is 'de'.
'de'+'test'='DETEST'
'by' is the link.
Can you help me to learn more?
(Other definitions for detest that I've seen before include "Really dislike" , "Having a loathing" , "Dislike intensely, loathe" , "Dislike heartily" , "can't stand" .)