Sculpture, say, providing cool craft (8)
I believe the answer is:
artifice
'craft' is the definition.
(thesaurus)
'sculpture say providing cool' is the wordplay.
'sculpture say' becomes 'art' (sculpture is a kind of art).
'providing' becomes 'if' (I've seen this in other clues).
'cool' becomes 'ice' (icing is a kind of cooling).
'art'+'if'+'ice'='ARTIFICE'
(Other definitions for artifice that I've seen before include "Trick, device" , "Crafty deception or stratagem" , "Contrivance, trickery" , "Clever trick, crafty ploy" , "BRICK/TRICK" .)