Dignitary on hill? (8)
I believe the answer is:
eminence
I believe this clue is a double definition.
'dignitary' is the first definition.
(thesaurus)
'hill?' is the second definition.
(I've seen this in another clue)
'on' is the link.
(Other definitions for eminence that I've seen before include "Esteem" , "Distinguished person" , "famous person" , "State of distinction, like cardinal" , "Distinction; rising ground" .)