Charlie and girl adored being seen around — no longer a secret (12)

I believe the answer is:

declassified

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'charlie and girl adored being seen' is the definition.
I can't tell whether this defines the answer.

'no longer a secret' is the wordplay.
'no longer' becomes 'de' (I am not sure about this - if you are sure you should believe this answer much more).
'a secret' becomes 'classified' (I've seen this before).
'de'+'classified'='DECLASSIFIED'

'around' acts as a link.

Can you help me to learn more?

I've seen this clue in The Times.

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