Violent jets of gas brute uncle let loose (10)
I believe the answer is:
turbulence
'violent jets of gas' is the definition.
I can't tell whether this defines the answer.
'brute uncle let loose' is the wordplay.
'let loose' indicates an anagram.
'brute'+'uncle'='bruteuncle'
'bruteuncle' with letters rearranged gives 'TURBULENCE'.
Can you help me to learn more?
(Other definitions for turbulence that I've seen before include "Disorder in flow" , "Airy instability" , "Irregularity in flows" , "Disturbed state" , "Upheaval" .)