Basil or dill, eg (4)
I believe the answer is:
herb
I believe this clue is a double definition.
'basil' is the first definition.
(basil is an example)
'dill eg' is the second definition.
(dill is a kind of herb)
(Other definitions for herb that I've seen before include "plant with useful properties" , "eg Thyme, basil" , "Wayside plant with small red flowers" , "Type of plant used in medicine" , "Plant used for flavour" .)