What's spewed out by politicians, ladies and gentlemen? (10)

I believe the answer is:

lavatories

'ladies and gentlemen?' is the definition.
(ladies' toilets and gentlemen's toilets)

'what's spewed out by politicians' is the wordplay.
'what's spewed out' becomes 'lava' (lava is spewed by volcanoes).
'by' means one lot of letters go next to another.
'politicians' becomes 'tories' (informal term for the Conservative Party).
'lava'+'tories'='LAVATORIES'

I've seen this clue in The Guardian.

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