A net ruled out just the same (9)
I believe the answer is:
unaltered
'the same' is the definition.
(thesaurus)
'a net ruled out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'a'+'net'+'ruled'='anetruled'
'anetruled' is an anagram of 'UNALTERED'.
'just' acts as a link.
(Other definitions for unaltered that I've seen before include "as always" , "Still the same" , "Remaining the same" , "not revised" , ""Nothing's been changed!"" .)