Extra stout perhaps inside to be sensational (5)

I believe the answer is:

obese

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'extra stout perhaps' is the definition.
I can't tell whether this definition defines the answer.

'inside to be sensational' is the wordplay.
'inside' says the answer is hidden in the clue.
'OBESE' can be found hidden inside 'to be sensational'.

Can you help me to learn more?

(Other definitions for obese that I've seen before include "Morbidly fat" , "Too chubby" , "Carrying far too much weight" , "likely to tip the balance?" , "Significantly overweight" .)

I've seen this clue in The Independent.

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