German weaver denuded (4)

Ross

I believe the answer is:

otto

I'm a little stuck... Click here to teach me more about this clue!

'german' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for otto that I've seen before include "Ger. name (palindrome)" , "Rose oil; man's name" , "Rose petal oil; Bismarck's name" , "he goes" , "Four-stroke cycle -- palindromic name" .)

I've seen this clue in The Independent.

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