Sculpture, say, exhibited in Parthenon (3)
I believe the answer is:
art
'sculpture say' is the definition.
(I know that carving is a type of art)
'exhibited in parthenon' is the wordplay.
'exhibited in' indicates a hidden word.
'ART' is hidden within 'parthenon'.
(Other definitions for art that I've seen before include "Creative works; skill" , "Work such as paintings or sculptures" , "This gallery displays paintings" , "Works of beauty created by humans" , "Skill, craft" .)