Converse for example with people outside (8)
I believe the answer is:
negation
'converse' is the definition.
(both can mean something's opposite)
'example with people outside' is the wordplay.
'example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'with people' becomes 'nation' (I am not sure about the 'with' bit.).
'outside' indicates putting letters inside.
'eg' going within 'nation' is 'NEGATION'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for negation that I've seen before include "Refutation by Antigone" , "Denial of something's existence" , "Contradiction" , "disagreement" , "Cancellation" .)