Scold harshly; castigate (6)
I believe the answer is:
berate
This clue is a double definition.
'scold harshly' is the first definition.
(I've seen this before)
'castigate' is the second definition.
(thesaurus)
(Other definitions for berate that I've seen before include "Carpet" , "Angrily scold/criticise" , "Scold; angrily criticise" , "Scold harshly" , "slate" .)