Reader sees voter blowing top (6)
I believe the answer is:
lector
'reader' is the definition.
('lector' can be a synonym of 'reader')
'voter blowing top' is the wordplay.
'voter' becomes 'elector' ('elector' can be a synonym of 'voter').
'blowing top' means to remove the first letter.
'elector' with its initial letter removed is 'LECTOR'.
'sees' is the link.
(Other definitions for lector that I've seen before include "Person reading lessons in church" , "Reader, esp. in church" , "Reader at certain universities" , "Hannibal - -" , "one reads" .)