Continue or persevere (5,2)
I believe the answer is:
carry on
I believe this is a double definition.
'continue' is the first definition.
(carry on can mean to continue or keep going)
'persevere' is the second definition.
(thesaurus)
(Other definitions for carry on that I've seen before include "in-flight baggage" , "song and dance" , "Don't give up" , "Display of fussing" , "The palaver" .)