One to whom parties appeal? (5)
I believe the answer is:
voter
'one' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for voter that I've seen before include "Member of electorate" , "Cross writer" , "supporter of politician" , "One exercising the ballot" , "Constituent" .)