Be all atremble yet brave it somehow (7)

I believe the answer is:

vibrate

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'be all atremble' is the definition.
I can't judge whether this definition defines the answer.

'brave it somehow' is the wordplay.
'somehow' indicates an anagram.
'brave'+'it'='braveit'
'braveit' with letters rearranged gives 'VIBRATE'.

'yet' is the link.

Can you help me to learn more?

(Other definitions for vibrate that I've seen before include "Oscillate rapidly" , "Quiver rapidly, resonate" , "Shake, quiver, or throb" , "tremble" , "Move rapidly to and fro" .)

I've seen this clue in The Globe and Mail.

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