Mean to arrest that man eventually (2,3,3)
I believe the answer is:
in the end
'eventually' is the definition.
(I've seen this before)
'mean to arrest that man' is the wordplay.
'mean to' becomes 'intend' (I've seen this before).
'arrest' indicates putting letters inside.
'that man' becomes 'he'.
'intend' placed around 'he' is 'IN THE END'.
(Other definitions for in the end that I've seen before include "At long last" , "Eventually" , "Ultimately" , "Then Enid came at last" , "Finally" .)