Ideal sample of medicine, decoction from the east (6)
I believe the answer is:
edenic
'ideal' is the definition.
(thesaurus)
'sample of medicine decoction from the east' is the wordplay.
'sample of' indicates a hidden word (I've seen this in other clues).
'from the east' says the letters should be written in reverse.
'cinede' is hidden within 'medicine decoction'.
'cinede' written backwards gives 'EDENIC'.
(Other definitions for edenic that I've seen before include "Like garden of Genesis" , "Paradisical" .)