German industrial hub (5)
I believe the answer is:
essen
'german industrial hub' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for essen that I've seen before include "Main industrial city of the Ruhr" , "Krupp HQ (Ger.)" , "European city" , "German place name" , "German industrial city on the Ruhr" .)