He votes for the last reader (7)

I believe the answer is:

elector

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'he votes' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

'the last reader' is the wordplay.
'last' suggests the final letters.
'reader' becomes 'lector' (synonyms).
The final letter of 'the' is 'e'.
'e'+'lector'='ELECTOR'

'for' is the link.

Can you help me to learn more?

(Other definitions for elector that I've seen before include "One eligible to vote" , "who's making his mark?" , "one given a choice" , "Potential voter" , "Crosses" .)

I've seen this clue in the Sydney Morning Herald.

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