Eg, basil or rosemary (4)
I believe the answer is:
herb
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">eg basil</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that basil is a type of herb)</span><br/ ><br/ >'<span class="explanation-format__original">rosemary</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for herb that I've seen before include "Medicinal or culinary plant" , "like Basil" , "Basil, perhaps" , "Chives or coriander, say" , "Useful or edible plant" .)