________ von Bismarck (4)
I believe the answer is:
otto
'von bismarck' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for otto that I've seen before include "He's a German, whichever way you look at it" , "Four-stroke cycle -- palindromic name" , "- - Preminger (films)" , "Italian for eight" , "Palindromic German boy's name" .)