Scene in story about Balthazar originally taking gold (7)
I believe the answer is:
tableau
'scene' is the definition.
(thesaurus)
'story about balthazar originally taking gold' is the wordplay.
'story' becomes 'tale' ('tale' can be a synonym of 'story'**).
'about' means one lot of letters goes inside another.
'originally' indicates taking the first letters.
'taking' is a charade indicator (letters next to each other).
'gold' becomes 'au' (Au is the chemical symbol for gold).
The initial letter of 'balthazar' is 'b'.
'tale' placed around 'b' is 'table'.
'table'+'au'='TABLEAU'
'in' acts as a link.
(Other definitions for tableau that I've seen before include "Depiction of a scene by people in costume" , "Motionless group on stage" , "A scene with silent motionless group of people" , "picture that's striking" , "A dramatic or picturesque scene, may be still" .)