Done any illicit narcotic? (7)

I believe the answer is:

anodyne

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'narcotic?' is the definition.
(thesaurus)

'done any illicit' is the wordplay.
'done any' anagrams to 'ANODYNE'.
But, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for anodyne that I've seen before include "not causing disagreement" , "A drug that relieves pain" , "Pain relieving" , "Dully uncontroversial" , "Causing no offence" .)

I've seen this clue in The Hindu.

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