Aromatic culinary herb (7)
I believe the answer is:
oregano
'aromatic culinary herb' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for oregano that I've seen before include "food flavouring" , "Marjoram-like herb" , "Gear Ono up for the herb" , "Mediterranean herb" , "aromatic plant" .)