Light piece of furniture (6)
I believe the answer is:
settle
I believe this is a triple definition!
'light' is the first definition.
(thesaurus)
'piece' is the second definition.
(I have seen 'piece of furniture' mean 'settle' so perhaps 'piece' could also mean 'settle')
'of' is a link.
'furniture' is the third definition.
(settle is a kind of furniture)
(Other definitions for settle that I've seen before include "Reach an agreement or become calm" , "Resolve; land" , "Colonise the bench" , "A sort of bench" , "Establish, compose" .)