Feud: cheers following check about outcome (8)
I believe the answer is:
vendetta
'feud' is the definition.
(vendetta is a kind of feud)
'cheers following check about outcome' is the wordplay.
I cannot quite see how this works, but
'cheers' could be 'ta' (I've seen this in other clues) and 'ta' is found within the answer.
'outcome' could be 'end' (I've seen this in other clues) and 'end' is located in the answer.
'check' could be 'vet' (I've seen this before) and 'vet' is present in the leftover letters.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for vendetta that I've seen before include "ding-dong battle" , "A bitter Italian feud" , "Murderous feud" , "intense feud" , "ongoing row" .)