Volatile liquid delivered there (5)

I believe the answer is:

ether

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'volatile liquid' is the definition.
(I've seen this before)

'delivered there' is the wordplay.
'there' anagrams to 'ETHER'.
However, I am not clear how this is indicated.

Can you help me to learn more?

(Other definitions for ether that I've seen before include "Colourless, highly flammable liquid" , "Clear upper air" , "number" , "An early anaesthetic" , "Light liquid used as anaesthetic" .)

I've seen this clue in The Daily Express.

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