Georgia when inside obliterates representatives (9)
I believe the answer is:
delegates
'representatives' is the definition.
(delegate is a kind of representative)
'georgia when inside obliterates' is the wordplay.
'georgia' becomes 'GA' (abbreviation for the US state).
'when inside' indicates putting letters inside.
'obliterates' becomes 'deletes' (to delete is to obliterate or remove).
'ga' put within 'deletes' is 'DELEGATES'.
(Other definitions for delegates that I've seen before include "Representatives or deputies" , "They're appointed to represent others" , "Confers authority on agent or subordinate" .)