Germany, and us, returning fashion and title (7)

I believe the answer is:

dukedom

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'title' is the definition.
(I have seen 'Hereditary title ' mean 'dukedom' so perhaps 'title' could also mean 'dukedom')

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for dukedom that I've seen before include "Noble rank" , "nobility?" , "Duchy" , "Highest title of aristocracy" , "Hereditary title" .)

I've seen this clue in The Daily Express.

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