"Active" or "dormant" landform (7)

I believe the answer is:

volcano

(Other definitions for volcano that I've seen before include "Crater emitting lava" , "Eg, Eyjafjallajokull" , "Opening in earth's crust ejecting molten matter" , "Lava source" , "A fissure in the earth's crust with molten rock" .)

I've seen this clue in the USA Today.

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