Go up and see (10)
I believe the answer is:
appreciate
This clue is a double definition.
'go up' is the first definition.
(thesaurus)
'see' is the second definition.
(appreciating is a kind of seeing)
'and' is the link.
(Other definitions for appreciate that I've seen before include "See < prize" , "Take full account of" , "Feel grateful" , "Welcome" , "Treasure" .)