Mean to entertain the man, eventually (2,3,3)
I believe the answer is:
in the end
'eventually' is the definition.
(I've seen this before)
'mean to entertain the man' is the wordplay.
'mean to' becomes 'intend' (I've seen this before).
'entertain' means one lot of letters goes inside another.
'the man' becomes 'he'.
'intend' enclosing 'he' is 'IN THE END'.
(Other definitions for in the end that I've seen before include "Finally" , "Eventually" , "Ultimately" , "At long last" , "Then Enid came at last" .)