Crossword Genius

Chimney duct (4)

Ross

I believe the answer is:

flue

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">chimney duct</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>

(Other definitions for flue that I've seen before include "Chimney channel" , "Vent pipe for smoke, etc" , "Passage for air" , "Chimney duct" , "Chimney-duct" .)

I've seen this clue in The New York Times, the King Feature Syndicate, the Sydney Morning Herald, the Penny Press, the Universal, The Mirror and the Newsday.
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