Panel shaken up and jittery (5,4)

I believe the answer is:

petit jury

'panel' is the definition.
(thesaurus)

'shaken up and jittery' is the wordplay.
'shaken' indicates an anagram.
'and' means one lot of letters go next to another (I've seen this in other clues).
'up' after 'jittery' is 'jitteryup'.
'jitteryup' with letters rearranged gives 'PETIT JURY'.

(Another definition for petit jury that I've seen is " panel".)

I've seen this clue in The Independent.

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