Tree balm blend induces shaking (8)

I believe the answer is:

atremble

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'induces shaking' is the definition.
I can't judge whether this definition defines the answer.

'tree balm blend' is the wordplay.
'blend' is an anagram indicator (I've seen 'blending' mean this (letters blended or mixed into a new form)).
'tree'+'balm'='treebalm'
'treebalm' is an anagram of 'ATREMBLE'.

Can you help me to learn more?

(Another definition for atremble that I've seen is " quivering".)

I've seen this clue in The Irish Times.

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