The utterly German, Mr Mane (4)
I believe the answer is:
hair
'mane' is the definition.
(I've seen this before)
'the utterly german mr' is the wordplay.
'the utterly' indicates a 'sounds like' (homophone) clue (as uttered).
'german mr' becomes 'herr' (I've seen this before).
'herr' is a homophone of 'HAIR'.
(Other definitions for hair that I've seen before include "Fur - mop" , "Fibre; small extent" , "Musical with nude scenes" , "Human head covering" , "Threadlike growth" .)