Herb; wise person (4)
I believe the answer is:
sage
This clue is a double definition.
'herb' is the first definition.
(sage is a kind of herb)
'wise person' is the second definition.
(sage can mean a wise or holy person)
(Other definitions for sage that I've seen before include "Clary" , "A herb or a guru" , "Culinary herb" , "___ and onion" , "Solon, for instance" .)