Dubious socialite brought before a board (9)
I believe the answer is:
debatable
'dubious' is the definition.
(synonyms)
'socialite brought before a board' is the wordplay.
'socialite' becomes 'deb' (I have seen 'Young socialite ' mean 'deb' so perhaps 'socialite' could also mean 'deb').
'brought before' says to put letters next to each other.
'board' becomes 'table' (both can mean food).
'deb'+'a'+'table'='DEBATABLE'
(Other definitions for debatable that I've seen before include "Dubious" , "Open to argument" , "subject to discussion" , "Moot" , "Open to question" .)