Crossword Genius

Bellybutton buildup (4)

Ross

I believe the answer is:

lint

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bellybutton buildup</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>

(Other definitions for lint that I've seen before include "Napped cloth used to dress wounds" , "Fabric for dressing wounds" , "Soft material for dressing wounds" , "Wound dressing" , "Wound-dressing fabric" .)

I've seen this clue in The New York Times.
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