Dead queen ignored by count (4)

I believe the answer is:

numb

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'dead' is the definition.
(thesaurus)

I don't understand how the rest of the clue works.

(Other definitions for numb that I've seen before include "Frozen" , "Lacking feeling" , "Deaden" , "Insensate" , "Stupefied; unfeeling" .)

I've seen this clue in The Times.

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