Stays to get what's left (7)
I believe the answer is:
remains
I believe this is a double definition.
'stays' is the first definition.
('remain' can be a synonym of 'stay')
'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" .)