Lava's converted to conservative safe place (9)

I believe the answer is:

salvatory

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'safe place' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'lava's converted to conservative' is the wordplay.
'converted' indicates anagramming the letters.
'to conservative' becomes 'tory' (informal term for a Conservative Party member).
'lavas' anagrammed gives 'salva'.
'salva'+'tory'='SALVATORY'

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I've seen this clue in the Sydney Morning Herald.

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