Go out with Iberian native (9)
I believe the answer is:
aborigine
'native' is the definition.
(I've seen this before)
'go out with iberian' is the wordplay.
'out with' indicates anagramming the letters (out can mean wrong or inaccurate).
'go' mixed up with 'iberian' makes 'ABORIGINE'.
(Other definitions for aborigine that I've seen before include "Old Australian" , "I was in Oz first"" , "Native Australian" , "Oldest inhabitant" , "Original inhabitant" .)