Forced voice to have no success eliminating one dispute (8)
I believe the answer is:
falsetto
'forced voice' is the definition.
'falsetto' can be an answer for 'voice' (falsetto is a kind of voice). I'm unsure of the 'forced' bit.
'to have no success eliminating one dispute' is the wordplay.
I cannot really see how this works, but
'to' is found in the answer.
'one' could be 'a' (a thing is one thing) and 'a' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for falsetto that I've seen before include "Artificial pitch" , "Voice that's raised" , "Extra high male singing voice" , "Voice pitch higher than the normal range" , "High vocal range" .)