Belittling edgy orator cruelly (10)
I believe the answer is:
derogatory
'belittling' is the definition.
(synonyms)
'edgy orator cruelly' is the wordplay.
'cruelly' indicates anagramming the letters (I've seen this in other clues).
'edgy'+'orator'='edgyorator'
'edgyorator' with letters rearranged gives 'DEROGATORY'.
(Other definitions for derogatory that I've seen before include "deliberately offensive" , "Showing a disrespectful attitude" , "Disparaging" , "Insulting" .)