Noted German charioteer losing wheel (6)
I believe the answer is:
wagner
'noted german' is the definition.
(I've seen this before)
'charioteer losing wheel' is the wordplay.
'charioteer' becomes 'wagoner' (I've seen this in another clue).
'losing' indicates named letters should be taken away.
'wheel' becomes 'O' (O looks like a wheel).
'wagoner' with 'o' taken away is 'WAGNER'.
(Other definitions for wagner that I've seen before include "German cycle-maker" , ""The Ring of the Nibelung" composer" , "German composer of The Ring Cycle" , "German composer of The Flying Dutchman" , "Richard . . . . . . composed The Flying Dutchman" .)