Celebs get trial arranged to cover the crucial point (10)
I believe the answer is:
glitterati
'celebs' is the definition.
(glitterati means famous people)
'get trial arranged to cover the crucial point' is the wordplay.
'arranged' is an anagram indicator (letters rearranged).
'to cover' is an insertion indicator.
'the crucial point' becomes 'it' (that's just it).
'get'+'trial'='gettrial'
'gettrial' with letters rearranged gives 'glterati'.
'glterati' placed around 'it' is 'GLITTERATI'.
(Other definitions for glitterati that I've seen before include "Rich, beautiful and fashionable celebs" , "Celebrities" , "Fashionable people" , "Glamorous, rich and famous people?" , "Showbiz types" .)