Crossword Genius

Posted popular class edition (8)

Ross

I believe the answer is:

informed

'posted' is the definition.
(thesaurus)

'popular class edition' is the wordplay.
'popular' becomes 'in'.
'class' becomes 'form' (form class is a kind of class).
'edition' becomes 'ed'.
'in'+'form'+'ed'='INFORMED'

(Other definitions for informed that I've seen before include "Gave knowledge to" , "Knowledgeable or briefed" , "Imparted knowledge" , "Expert" , "Told" .)

I've seen this clue in The Telegraph.
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