Rebuke or reprimand severely (8)
I believe the answer is:
chastise
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">rebuke</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(chastising is a kind of rebuking)</span><br/ ><br/ >'<span class="explanation-format__original">reprimand severely</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for chastise that I've seen before include "Berate" , "Censure severely" , "lecture" , "Inflict physical corrective treatment" , "Severely reprimand" .)