I’m fearing shaking device which blows things up (9)

I believe the answer is:

magnifier

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'device which blows things up' is the definition.
'magnifier' can be an answer for 'device' (magnifier is a kind of device). I'm not certain of the rest of the definition.

'i'm fearing shaking' is the wordplay.
'shaking' indicates anagramming the letters.
'im'+'fearing'='imfearing'
'imfearing' anagrammed gives 'MAGNIFIER'.

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I've seen this clue in The Times.

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