Made for Mussolini on 1st of December (8)
I believe the answer is:
produced
'made' is the definition.
(producing is a kind of making)
'mussolini on 1st of december' is the wordplay.
'mussolini' becomes 'duce' (I've seen this before).
'on' indicates putting letters inside.
'pst of december' becomes 'prod' (I am not sure about this - if you are sure you should believe this answer much more).
'duce' put within 'prod' is 'PRODUCED'.
'for' is the link.
(Other definitions for produced that I've seen before include "Bore" , "Brought about, yielded" , "Made or gave rise to" , "Made or presented something" .)