Secures Elsa's heart? (5)
I believe the answer is:
lands
'secures' is the definition.
Although both the answer and definition are verbs in their -s form, I can't see how they can define each other.
I don't understand the remainder of the clue.
(Other definitions for lands that I've seen before include "Obtains" , "Comes ashore" , "Alights" , "See 21" .)