Without identification of nude man, nude retreat lacked coverage (7)

Ross

I believe the answer is:

unnamed

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

'without identification' is the definition.
(I've seen this before)

'nude man nude retreat lacked coverage' is the wordplay.
'nude man' anagrams to 'UNNAMED'.
But, I'm unsure how this is indicated.

'of' acts as a link.

Can you help me to learn more?

(Other definitions for unnamed that I've seen before include "anon" , "Not identified in mundane way" , "Nude man (anag) - not identified" , "not placed in speech" , "without identification" .)

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

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