Not even adjusted, yet right (5)
I believe the answer is:
never
'not' is the definition.
(thesaurus)
'even adjusted yet right' is the wordplay.
'adjusted' is an anagram indicator.
'yet right' becomes 'r' (common abbreviation. I am not sure about the 'yet' bit.).
'even' is an anagram of 'neve'.
'neve'+'r'='NEVER'
Can you help me to learn more?
(Other definitions for never that I've seen before include "Do not give up!" , "No way" , "Certainly not!" , "Surely not" , "I refuse" .)