In a confused uproar, the youngster left (5)
I believe the answer is:
babel
'in a confused uproar' is the definition.
I can't judge whether this definition defines the answer.
'youngster left' is the wordplay.
'youngster' becomes 'babe' (I've seen this before).
'left' becomes 'l' (common abbreviation).
'babe'+'l'='BABEL'
'the' is the link.
Can you help me to learn more?
(Other definitions for babel that I've seen before include "Noisy confusion of voices" , "Confusion of noise" , "Confused noise of many voices" , "All talking at once" , "scene of confusion" .)