Objet d'art (5)
I believe the answer is:
curio
'objet d'art' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for curio that I've seen before include "Oddity, rarity" , "odd thing" , "Unusual, intriguing object" , "Intriguing object worth collecting" , "Antique" .)