Crossword Genius

Test case? (5)

Ross

I think it could be either:

final

trial
I'm a little stuck... Click here to teach me more about this clue!

'test' is the definition.
(I know that final is a type of test)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for final that I've seen before include "binding" , "Coming at the end" , "Last in a series of games or contests" , "The last exam or leg of competition" , "Conclusive" .)

I've seen this clue in The Daily Express and The Washington Post.
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