Apiarists haphazardly grabbing top of dying plant (10)
I believe the answer is:
aspidistra
'plant' is the definition.
(aspidistra is a kind of plant)
'apiarists haphazardly grabbing top of dying' is the wordplay.
'haphazardly' is an anagram indicator.
'grabbing' is an insertion indicator.
'top of' suggests taking the first letters.
The initial letter of 'dying' is 'd'.
'apiarists' is an anagram of 'aspiistra'.
'aspiistra' enclosing 'd' is 'ASPIDISTRA'.
(Other definitions for aspidistra that I've seen before include "The biggest - (in the world) (Gracie Fields)" , "something normally developed in-house?" , "Household growth" , "Plant of the lily family" , "Star is paid (anag) - plant" .)