Some furores ultimately ensue (6)
I believe the answer is:
result
'ensue' is the definition.
('result' can be a synonym of 'ensue')
'some furores ultimately' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'RESULT' is hidden within 'furores ultimately'.
(Other definitions for result that I've seen before include "Consequence or effect" , "'Outcome, upshot (6)'" , "Outcome of an undertaking" , "Final score" , "Consequence in Ulster (6)" .)