Win game after deuce by dishonour (4,9,2)

'dishonour' is the definition.
The definition and answer can be both to do with ownership as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?

'win game after deuce' is the wordplay.
I cannot really see how this works, but
'win' could be 'take' (taking is a kind of winning) and 'take' is found within the answer.
'game' could be 'tag' (I've seen this before) and 'tag' is found in the answer.
This may be the basis of clue (or it may be nonsense).

'by' is the link.

Can you help me to learn more?