Fuel gas for energy under cooking vessel (7)
I believe the answer is:
propane
'fuel gas' is the definition.
'propane' can be an answer for 'fuel' (I've seen this before). I am unsure of the 'gas' bit.
'for energy under cooking vessel' is the wordplay.
'for' becomes 'pro' (as in being 'pro' something).
'energy' becomes 'e' (physics symbol as in E=mc2).
'under' means one lot of letters go next to another.
'cooking vessel' becomes 'pan' (I've seen this before).
'e' put after 'pan' is 'pane'.
'pro'+'pane'='PROPANE'
Can you help me to learn more?
(Other definitions for propane that I've seen before include "gaseous fuel" , "Gas used as fuel" , "Bottle gas" , "A hydrocarbon gas" , "Type of gas" .)