Mount Fuji, e.g. (7)

I believe the answer is:

volcano

(Other definitions for volcano that I've seen before include "Scene of eruptions" , "One expelling lava etc." , "Opening in earth's crust ejecting molten matter" , "Dangerous mountain like Stromboli or Etna" , "Erupting fissure in the earth's crust" .)

I've seen this clue in The Wall Street Journal.

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