She's a nut! (5)

I believe the answer is:

hazel

I believe this is a double definition.

'she's' is the first definition.

'a nut' is the second definition.
(I've seen this in another clue)

(Other definitions for hazel that I've seen before include "Catkin-bearing tree" , "wood" , "Tree - greenish-brown" , "Light brown; nut" , "Girl's name; colour" .)

I've seen this clue in the Evening Standard.

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