Very bad lad Freud cured (8)
I believe the answer is:
dreadful
'very bad' is the definition.
(I've seen this before)
'lad freud cured' is the wordplay.
'cured' is an anagram indicator.
'lad'+'freud'='ladfreud'
'ladfreud' with letters rearranged gives 'DREADFUL'.
(Other definitions for dreadful that I've seen before include "Terrible" , "Informally very bad, perhaps the weather" , "Extremely bad or disagreeable" , "Atrocious, awful" , "Horrible, shocking" .)