Former German Chancellor Helmut (4)
I believe the answer is:
kohl
'former german chancellor helmut' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for kohl that I've seen before include "Former German Chancellor" , "Black eye-liner; ex-German Chancellor" , "Helmut --, German statesman" , "Black powder for eyes" , "Black powder used as eye make-up" .)