George Weasley, say, gets extremely grave pain (6)

I believe the answer is:

twinge

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'pain' is the definition.
(twinge is a kind of pain)

I cannot understand how the remainder of the clue works.

(Other definitions for twinge that I've seen before include "Sudden sharp pain" , "Slight localised pain" , "Emotional pang" , "little pain" , "Sharp localised pain" .)

I've seen this clue in The Times.

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