Crossword Genius

What we get called in explosive contest (10)

Ross

I believe the answer is:

tournament

'contest' is the definition.
(I know that tournament is a type of contest)

I cannot understand how the rest of the clue works.

(Other definitions for tournament that I've seen before include "military display" , "Jousting competition" , "meeting!" , "pageant" , "Sports event" .)

I've seen this clue in The Guardian.
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