Does twist? Bolero often follows this (6)

I believe the answer is:

ravels

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'does twist?' is the definition.
The answer and definition can be both to do with contact as well as being verbs in their -s form.
Maybe there's a link between them I don't understand?

I cannot understand how the rest of the clue works.

Can you help me to learn more?

I've seen this clue in The Times.

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