Rope may appear once a trial is done (6)

I believe the answer is:

lariat

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

'rope' is the definition.
(lariat is a kind of rope)

'appear once a trial is done' is the wordplay.
'a trial' can be anagrammed to 'LARIAT'.
But, I am not clear how this is indicated.

'may' acts as a link.

Can you help me to learn more?

(Other definitions for lariat that I've seen before include "Rope for the cowboy" , "Gear for cattlemen" , "Cowboy's rope, lasso" , "A cowboy's rope with noose" , "A trail (anag) - rope" .)

I've seen this clue in The Telegraph.

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