Precarious bestowal can be shelved (8)

I believe the answer is:

stowable

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'precarious' is the definition.
Both the answer and definition are adjectives.
Perhaps there's a link between them I don't understand?

'bestowal can be shelved' is the wordplay.
'bestowal' can be anagrammed to 'STOWABLE'.
However, I'm unsure how this is indicated.

Can you help me to learn more?

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

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