Villain’s broken rank to stop one going up and down (4,6)

'villain's broken' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'rank to stop one going up and down' is the wordplay.
I cannot really see how this works, but
an anagram of 'rank' is 'ankr' which is located in the answer.
'up and down' could be 'bob' and 'bob' is located in the remaining letters.
The remaining letters 'ber' is a valid word 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?