The Speaker's indeed backing one supporting vote for justice? (3,3,2,3)

'justice?' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'the speaker's indeed backing one supporting vote' is the wordplay.
'the speaker's' shows a homophone (sound like) (as it might sound when spoken).
'indeed' becomes 'aye' (I've seen this before).
'backing' becomes 'for' (I've seen this in another clue).
'one supporting vote' becomes 'aneye' (I can't justify this - if you can you should believe this answer much more).
'aye' is a homophone of 'eye'.
'eye'+'for'+'aneye'='EYE FOR AN EYE'

'for' acts as a link.

Can you help me to learn more?