Identifies celebrities (5)
I believe the answer is:
names
This clue is a double definition.
'identifies' is the first definition.
('name' can be a synonym of 'identify')
'celebrities' is the second definition.
(as in a phrase like 'a big name in fashion')
(Other definitions for names that I've seen before include "Appellations or identifiers" , "celebrities" , "Some people drop these to sound important" , "identification" , "Paul, Pat, John" .)