A piece of furniture, right until now (2,3)
I believe the answer is:
so far
'until now' is the definition.
(both can mean up to the current point)
'a piece of furniture right' is the wordplay.
'a piece of furniture' becomes 'sofa' (sofa is a type of furniture).
'right' becomes 'r' (abbreviation).
'sofa'+'r'='SO FAR'
(Other definitions for so far that I've seen before include "To this point" , "to a certain degree" , "till now" , "Up until the present moment" .)