Debris that can form into "bunnies" (4)

I believe the answer is:

dust

(Other definitions for dust that I've seen before include "Fine powdery material that can be blown about in the air" , "Fine dry powder" , "Unwanted fine powder" , "Tiny particles of dirt, skin flakes etc" , "Sprinkle -- powder" .)

I've seen this clue in the USA Today.

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