Scandal reflected on a society girl (6)
I believe the answer is:
astrid
'girl' is the definition.
'scandal reflected on a society' is the wordplay.
'scandal' becomes 'dirt' (synonyms).
'reflected' says the letters should be written backwards.
'on' says to put letters next to each other.
'society' becomes 's' (common abbreviation in names of organisations).
'dirt' written backwards gives 'trid'.
'a'+'s'='as'
'trid' put after 'as' is 'ASTRID'.
(Other definitions for astrid that I've seen before include "Scandinavian girl" , "foreign lady" , "Stir Da up about a Scandinavian woman" , "girl abroad" .)