Victor gets it on with these jumpers (1-5)

'it on with these jumpers' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'victor' is the wordplay.
I cannot really see how this works, but
'victor' could be 'v' (phonetic alphabet: alpha, bravo, charlie etc.) and 'v' is located in the answer.
The remaining letters 'necks' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

'gets' acts as a link.

Can you help me to learn more?