Arrange to eat something vegetarian (3)

I believe the answer is:

tea

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'something vegetarian' is the definition.
I can't tell whether this defines the answer.

'arrange to eat' is the wordplay.
'arrange' is an anagram indicator.
'eat' anagrammed gives 'TEA'.

Can you help me to learn more?

(Other definitions for tea that I've seen before include "Afternoon meal; drink" , "Beverage from leaves" , "Refresher course" , "Refreshment" , "Oolong, for example" .)

I've seen this clue in the Evening Standard.

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