Polaris to point at celebrity (5,4)
I believe the answer is:
north star
'polaris' is the definition.
(synonyms)
'point at celebrity' is the wordplay.
'point' becomes 'north' (north is a kind of point).
'at' is a charade indicator (letters next to each other).
'celebrity' becomes 'star' (a star is a celebrity or famous person).
'north'+'star'='NORTH STAR'
'to' acts as a link.
(Other definitions for north star that I've seen before include "Polaris" , "guiding light" , "nickname of US State" , "feature of Ursa Minor" , "Navigational aid" .)