This is a container clue - one word or letter sequence is placed inside (or between) other letters or words.
Look for 'one' being placed between something, and combine that with 'fury'. The word 'separating' is your container indicator - it tells you that 'one' goes between 'two hands'.
Answer: LONE RANGER | 'One' (ONE) goes between 'two hands' (L and R - the left and right hands of the alphabet), giving you L-ONE-R, then add 'fury' (ANGER) to get LONE RANGER.