Eventually be punctual (2,4)
I believe the answer is:
in time
I believe this is a double definition.
'eventually' is the first definition.
(synonyms)
'punctual' is the second definition.
(similar in meaning)
'be' is the link.
(Other definitions for in time that I've seen before include "on schedule" , "What an orchestra should be" , "not too late" , "Early enough" , "eventually" .)