Apt name for a gardener (4)
I believe the answer is:
herb
'apt name for a gardener' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for herb that I've seen before include "Bouquet garni component" , "Rosemary, for example" , "Plant used in cooking" , "Parsley, for instance" , "Marjoram, say" .)