Golf in Germany may need such a course (8)

I believe the answer is:

autobahn

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'course' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for autobahn that I've seen before include "Motorway in Germany" , "One way the Germans drive" , "It takes continental drivers" , "way abroad" , "Great way" .)

I've seen this clue in The Telegraph.

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