Oz character cooked hot fish outside before storm (7,4)

I believe the answer is:

dorothy gale

'oz character' is the definition.
(character in The Wizard of Oz)

'cooked hot fish outside before storm' is the wordplay.
'cooked hot fish outside' becomes 'dorothy' (I can't justify this - if you can you should give a lot more credence to this answer).
'before' is a charade indicator (letters next to each other).
'storm' becomes 'gale' (a gale is a windy storm).
'dorothy'+'gale'='DOROTHY GALE'

I've seen this clue in The Independent.

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