Self-evident right to probe wicked person's file (12)
I believe the answer is:
demonstrable
'self-evident' is the definition.
(thesaurus)
'right to probe wicked person's file' is the wordplay.
I cannot really see how this works, but
'right' could be 'r' (common abbreviation) and 'r' is located in the answer.
'wicked person's' could be 'demons' (demons are wicked) and 'demons' is present in the answer.
The remaining letters 'table' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for demonstrable that I've seen before include "clear" , "Verifiable" , "Able to be proved" .)