So far, the man has taken tea out (2,4)
I believe the answer is:
to date
'so far' is the definition.
(I've seen this before)
'the man has taken tea out' is the wordplay.
'the man has' becomes 'tod' (I can't justify this - if you can you should believe this answer much more).
'taken' says to put letters next to each other.
'out' indicates an anagram (out can mean wrong or inaccurate).
'tea' with letters rearranged gives 'ate'.
'tod'+'ate'='TO DATE'
Can you help me to learn more?
(Other definitions for to date that I've seen before include "Until this point in time" , "Up to this time - check calendar" , "Reason suitor's come" , "Thus far" , "Up to the present time (2.4)" .)