Stays to get what's left (7)
I believe the answer is:
remains
I believe this clue is a double definition.
'stays' is the first definition.
(I know this)
'what's left' is the second definition.
(what remains or is left behind)
'to get' is the link.
(Other definitions for remains that I've seen before include "Leftovers" , "dead body the result?" , "Residue" , "The body: endures" , "Remnants" .)