For Steve, Ida concocted calming drug (8)

I believe the answer is:

sedative

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

'calming drug' is the definition.
(I've seen this before)

'for steve ida concocted' is the wordplay.
'steve ida' anagrams to 'SEDATIVE'.
But, I am not clear how this is indicated.

Can you help me to learn more?

(Other definitions for sedative that I've seen before include "Drug to make one sleep" , "Deviates from calming medicine" , "quieter" , "Calming drug" , "Sleep-inducing drug" .)

I've seen this clue in The Daily Express.

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