Novel source of energy - gas! (5,4)

I believe the answer is:

agnes grey

'novel' is the definition.
(novel by anne bronte)

'source of energy gas' is the wordplay.
'source of' indicates anagramming the letters.
'energy'+'gas'='energygas'
'energygas' with letters rearranged gives 'AGNES GREY'.

(Other definitions for agnes grey that I've seen before include "Novel" , "Acton governess" .)

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