Huge, falling mass of molten material recalled by edgy Argentinian revolutionary (9)
I believe the answer is:
avalanche
'huge falling mass' is the definition.
The answer and definition can be both to do with motion as well as being verbs in their base form.
Maybe you can see an association between them that I can't see?
'molten material recalled by edgy argentinian revolutionary' is the wordplay.
'molten material' becomes 'lava' (I've seen this in another clue).
'recalled' says the letters should be written backwards (to recall can mean to bring something back).
'by edgy argentinian' becomes 'an' (I can't explain this - if you can you should believe this answer much more).
'revolutionary' becomes 'Che' (Che Guevara).
'lava' backwards is 'aval'.
'aval'+'an'+'che'='AVALANCHE'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for avalanche that I've seen before include "Rock-fall" , "sudden rush" , "Mass of snow falling down a mountain" , "Landfall" , "great fall" .)