See it sounds like a vote in your favour (3)
I believe the answer is:
eye
'see' is the definition.
(I've seen this before)
'it sounds like a vote in your favour' is the wordplay.
I cannot quite see how this works, but
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found within the answer.
'like' could be 'y' (similar in meaning) and 'y' is present in the answer.
A single letter 'e' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for eye that I've seen before include "Twenty four ac emphasises it" , "Observer" , "Small loop or hole" , "Ogle" , "May be private" .)