Won't bother about the hat stand with shelves (7)
I believe the answer is:
whatnot
'stand with shelves' is the definition.
(I've seen this before)
'won't bother about the hat' is the wordplay.
'bother' indicates an anagram.
'about' is an insertion indicator.
'wont' with letters rearranged gives 'wnot'.
'wnot' going around 'hat' is 'WHATNOT'.
(Other definitions for whatnot that I've seen before include "Thing whose name is temporarily forgotten" , "Thingummy - display stand" , "Stand with shelves - knick-knack" , "Stand with shelves for small items" , "This piece of furniture" .)