Lad hopes to move plant (8)
I believe the answer is:
Here is my best explanation:
'plant' is the definition.
The answer is an example.
'lad hopes to move' is the subsidiary indication.
'to move' indicates an anagram.
'ladhopes' anagrammed gives 'asphodel'.
(Other definitions for asphodel that I've seen before include "Plant of lily family - lop heads (anag)", "Lad hopes (anag) - flower", "Flower of lily family - old heaps (anag)", "Shop deal (anag.)", "Lily", "Lily-like plant, the flower of death to ancient Greeks" and "Old shape (anag) - plant".)