Last offer (4,3)
I believe the answer is:
hold out
This clue is a double definition.
'last' is the first definition.
(holding out is a kind of lasting)
'offer' is the second definition.
(I've seen this before)
(Other definitions for hold out that I've seen before include "Offer as inducement or resist capture" , "Offer inducement or maintain resistance" , "Resist (against siege)" , "Continue to be sufficient" , "Offer - last" .)