Crossword Genius

Legal way to prevent a gathering of poets (5)

Ross

I believe the answer is:

estop

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

'legal way to prevent a gathering' is the definition.
I can't tell whether this defines the answer.

'of poets' is the wordplay.
'of' indicates an anagram (the answer comes from or 'of' the letters).
'poets' anagrammed gives 'ESTOP'.

Can you help me to learn more?

(Other definitions for estop that I've seen before include "term in law" , "Legally hinder removal" , "Bar, for a lawyer" , "lawyer's bar" , "Legally prevent" .)

I've seen this clue in The Globe and Mail.
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