Local outside for example is opposite (8)
I believe the answer is:
negative
'is opposite' is the definition.
(thesaurus)
'local outside for example' is the wordplay.
'local' becomes 'native' ('native' can be similar in meaning to 'local').
'outside' means one lot of letters goes inside another.
'for example' becomes 'eg' ('e.g.' can be a synonym of 'for example').
'native' enclosing 'eg' is 'NEGATIVE'.
(Other definitions for negative that I've seen before include "Expressing or implying denial or refusal" , "Less than zero, minus" , "Piece of photographic film" , "Less than positive" , "Photographic image with tones reversed" .)