Will it distend one's stomach? (7)

I believe the answer is:

bloater

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'will it' is the definition.
I can't judge whether this defines the answer.

'distend one's stomach?' is the wordplay.
'distend' becomes 'bloat' (bloating is a kind of distending).
'one's stomach?' becomes 'er' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'bloat'+'er'='BLOATER'

Can you help me to learn more?

(Other definitions for bloater that I've seen before include "that will more than fill one up" , "Cured herring" , "Buckling" , "Partially dried herring" , "Fish" .)

I've seen this clue in the Evening Standard.

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