Visit someone you regard highly (4,2)
I believe the answer is:
look up
'visit' is the definition.
(thesaurus)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for look up that I've seen before include "Search in dictionary or go to visit" , "Search for information as in encyclopedia" , "Search for information about, or go to visit" , "Get better" , "Gaze aloft or go to visit" .)