Come to the throne maybe and do well (7)
I believe the answer is:
succeed
This clue is a double definition.
'come to the throne maybe' is the first definition.
'do well' is the second definition.
(thesaurus)
'and' is the link.
(Other definitions for succeed that I've seen before include "Follow - triumph" , "Attain ambition" , "Do very well" , "what prince royal might do" , "Accomplish a goal" .)