Information about style (5)
I believe the answer is:
genre
'style' is the definition.
(I've seen this before)
'information about' is the wordplay.
'information' becomes 'gen' (gen is a kind of information**).
'about' becomes 're' (regarding).
'gen'+'re'='GENRE'
(Other definitions for genre that I've seen before include "Kind" , "Style of work" , "Literary type, species" , "Category (of art)" , "expressive style of music" .)