Rob's opus arranged; Strait of Turkey (8)

I believe the answer is:

bosporus

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'strait of turkey' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'rob's opus arranged' is the wordplay.
'arranged' indicates anagramming the letters.
'robs'+'opus'='robsopus'
'robsopus' is an anagram of 'BOSPORUS'.

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(Another definition for bosporus that I've seen is " Strait connecting Black Sea and Sea of Marmara, with Istanbul at south end".)

I've seen this clue in the Sydney Morning Herald.

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