Nothing left is fine (3,5)
I believe the answer is:
all right
I believe this is a double definition.
'nothing left' is the first definition.
(I've seen this before)
'fine' is the second definition.
(synonyms)
'is' is the link.
(Other definitions for all right that I've seen before include "no mistake!" , "Agreed" , "Fairly well; acceptable" , "Completely one-sided" , "Acceptable; I concur" .)