Arrest OAP dancing with Bryn Terfel? (5,4)

I believe the answer is:

opera star

I'm a little stuck... Click here to teach me more about this clue!

'bryn terfel?' is the definition.
I can't tell whether this defines the answer.

'arrest oap dancing' is the wordplay.
'dancing' indicates anagramming the letters.
'arrest'+'oap'='arrestoap'
'arrestoap' is an anagram of 'OPERA STAR'.

'with' is the link.

Can you help me to learn more?

(Other definitions for opera star that I've seen before include "Pavarotti, for example" , "Placido Domingo" .)

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