Information about artistic style (5)
I believe the answer is:
genre
'artistic style' is the definition.
(eg a film genre)
'information about' is the wordplay.
'information' becomes 'gen' (gen can informally mean information).
'about' becomes 're' ('re' means regarding or about).
'gen'+'re'='GENRE'
(Other definitions for genre that I've seen before include "Category (of art)" , "Kind" , "Style of work" , "Style/category of art" , "Literary type, species" .)