Capable of own arrangement so far (2,2,3)
I believe the answer is:
up to now
'so far' is the definition.
(I know that so far can be written as up to now)
'capable of own arrangement' is the wordplay.
'capable of' becomes 'upto' (I've seen this in another clue).
'arrangement' indicates anagramming the letters.
'own' anagrammed gives 'now'.
'upto'+'now'='UP TO NOW'
(Other definitions for up to now that I've seen before include "Hitherto" , "So far" .)