Hate being tested anew (6)
I believe the answer is:
detest
'hate' is the definition.
(to detest is to hate or loathe)
'tested anew' is the wordplay.
'anew' indicates an anagram.
'tested' anagrammed gives 'DETEST'.
'being' is the link.
(Other definitions for detest that I've seen before include "Dislike thoroughly" , "Despise or loathe" , "Hate a lot" , "Really dislike" , "Dislike heartily" .)