Reclusive elector's ID defective (10)
I believe the answer is:
cloistered
'reclusive' is the definition.
('cloistered' can be a synonym of 'reclusive')
'elector's id defective' is the wordplay.
'defective' is an anagram indicator.
'electors'+'id'='electorsid'
'electorsid' with letters rearranged gives 'CLOISTERED'.
(Other definitions for cloistered that I've seen before include "Being cut off from the world" , "Sheltered from outside society" , "with covered arcades" .)