Current dispute, sound and fury ultimately (4)
I believe the answer is:
eddy
'current' is the definition.
(I know that eddy is a type of current)
'dispute sound and fury ultimately' is the wordplay.
'ultimately' indicates one should take the final letters.
The final letters of 'dispute sound and fury' are 'EDDY'.
(Other definitions for eddy that I've seen before include "Founder of sect" , "Chap" , "Circle around" , "Spinning current" , "move in circles" .)