Upheaval due to stated limit on fossil fuel (7)

I believe the answer is:

turmoil

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'upheaval' is the definition.
(I know that upheaval can be written as turmoil)

'stated limit on fossil fuel' is the wordplay.
'stated limit on' becomes 'turm' (I am not sure about this - if you are sure you should believe this answer much more).
'fossil fuel' becomes 'oil' (I've seen this in another clue).
'turm'+'oil'='TURMOIL'

'due to' acts as a link.

Can you help me to learn more?

(Other definitions for turmoil that I've seen before include "upset" , "Wild disorder" , "Uproar" , "agitating activity" , "State of great commotion or disturbance" .)

I've seen this clue in The Times.

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