Endure, survive (4,3)
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I believe the answer is:
last out
I believe this is a double definition.
'endure' is the first definition.
(I've seen this before)
'survive' is the second definition.
(I've seen this before)
(Other definitions for last out that I've seen before include "Manage to survive" , "when all the others have gone" , "one leaving after everyone else" , "Keep on going" , "Survive for as long as is required" .)