Herb for e.g. an omelette? In part (7)
I believe the answer is:
oregano
'herb' is the definition.
(oregano is a kind of herb)
'for e g an omelette? in part' is the wordplay.
'in part' indicates the answer is hidden within the clue.
'OREGANO' can be found hidden inside 'for e g an omelette'.
(Other definitions for oregano that I've seen before include "leaves for season" , "part of Mediterranean diet?" , "Pizza herb" , "Aromatic culinary herb" , "Herb used in cookery" .)