Enduring being outside with no vote (7)
I believe the answer is:
eternal
'enduring' is the definition.
(thesaurus)
'being outside with no vote' is the wordplay.
'being outside' becomes 'external' ('external' can be a synonym of 'outside').
'with no' suggests deleting specific letters.
'vote' becomes 'x' (how votes are marked).
'external' with 'x' removed is 'ETERNAL'.
(Other definitions for eternal that I've seen before include "Constant" , "like Rome?" , "unchanged by time" , "Seemingly without end" , "Undying" .)