Sinatra has turned out to be a real craftsman (7)

I believe the answer is:

artisan

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'craftsman' is the definition.
(synonyms)

'sinatra has turned out to be a real' is the wordplay.
'sinatra' can be anagrammed to 'ARTISAN'.
However, I'm not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for artisan that I've seen before include "Egypt peninsula; holy Mount" , "Skilled tradesman" , "one in command of craft?" , "Skilled manual 17" , "craftsman of his trade" .)

I've seen this clue in The Globe and Mail.

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