It's not right or wrong? (8)
I believe the answer is:
improper
'wrong?' is the definition.
('improper' can be a synonym of 'wrong')
'it's not right' is the wordplay.
'it's not' becomes 'im' (I can't justify this - if you can you should give a lot more credence to this answer).
'right' becomes 'proper' ('proper' can be a synonym of 'right').
'im'+'proper'='IMPROPER'
'or' is the link.
Can you help me to learn more?
(Other definitions for improper that I've seen before include "Not decent, unseemly" , "'Not suitable, right or appropriate (8)'" , "Unseemly; (fraction) more than one" , "unfit" , "Incorrect or wrong, say behaviour" .)