Fury convulsed Regan (5)

I believe the answer is:

anger

'fury' is the definition.
(fury is intense anger)

'convulsed regan' is the wordplay.
'convulsed' indicates anagramming the letters (letters convulse or shake).
'regan' with letters rearranged gives 'ANGER'.

(Other definitions for anger that I've seen before include "Hack off" , "Annoyance, displeasure" , "wind up?" , "Strong displeasure" , "Strongly annoy" .)

I've seen this clue in The Times.

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