Vase concealed by furniture (3)
I believe the answer is:
urn
'vase' is the definition.
(both can mean a container)
'concealed by furniture' is the wordplay.
'concealed by' indicates the answer is hidden within the clue.
'URN' can be found hidden inside 'furniture'.
(Other definitions for urn that I've seen before include "Ornamental vessel" , "Vaselike vessel on a pedestal" , "tea maker" , "Large ornamental vase" , "a large vase as for cremation ashes" .)