Won that new piece of furniture (7)
I believe the answer is:
whatnot
'piece of furniture' is the definition.
(I've seen this before)
'won that new' is the wordplay.
'new' indicates an anagram.
'won'+'that'='wonthat'
'wonthat' with letters rearranged gives 'WHATNOT'.
(Other definitions for whatnot that I've seen before include "Portable ornament stand" , "A stand with shelves for small objects" , "Shelved stand for ornaments" , "Thing whose name is temporarily forgotten" , "Stand with shelves - knick-knack" .)