Take article to mean what supporting actor may do in play? (5,3,4)
I believe the answer is:
steal the show
'what supporting actor may do in play?' is the definition.
(a supporting actor might be said to steal the show)
'take article to mean' is the wordplay.
'take' becomes 'steal' (stealing is a kind of taking).
'article' becomes 'the' (the definite article in English).
'to mean' becomes 'show' (both can mean to indicate).
'steal'+'the'+'show'='STEAL THE SHOW'
(Other definitions for steal the show that I've seen before include "Attract the most attention and praise" , "Unexpectedly emerge as the outstanding performer" , "capture everyone's attention" , "Draw most attention and praise" , "Attract the most admiration" .)