Diva cries about article (6)
I believe the answer is:
callas
'diva' is the definition.
(Maria Callas)
'cries about article' is the wordplay.
'cries' becomes 'calls' ('call' can be a synonym of 'cry').
'about' means one lot of letters goes inside another.
'article' becomes 'a' (indefinite article).
'calls' enclosing 'a' is 'CALLAS'.
(Other definitions for callas that I've seen before include "Coloratura soprano of Greek background" , "Maria - - , opera singer" , "Superb soprano of Greek background" , "Maria ..., great diva of Greece" , "Noted late soprano of Greek background" .)