Settee right, up to now (5)
I believe the answer is:
sofar
'up to now' is the definition.
(I've seen this before)
'settee right' is the wordplay.
'settee' becomes 'sofa' (I've seen this before).
'right' becomes 'r' (common abbreviation).
'sofa'+'r'='SOFAR'
(Other definitions for sofar that I've seen before include "'Heretofore (2,3)'" , "Up till now" , "'Up to this time (2,3)'" , "To this point" , "Up until the present moment" .)