Concentrated extracts of plants (8)
I believe the answer is:
essences
'concentrated extracts of plants' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for essences that I've seen before include "Extracts or fundamental natures" , "Concentrated extracts of plants, for perfume say" , "Inner natures for perfumes" , "indispensable qualities" , "Plant extracts" .)