Poetry without a well-known writer, or an essay (3)

I believe the answer is:

try

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

'an essay' is the definition.
(I know that essay can be written as try)

'poetry without a well-known writer' is the wordplay.
'TRY' is hidden within the letters.
However, I'm uncertain how the hidden word is indicated.

'or' acts as a link.

Can you help me to learn more?

(Other definitions for try that I've seen before include "shot" , "Sample" , "Go" , "crack" , "Bid" .)

I've seen this clue in the Evening Standard.

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