Menace, intimidate (8)
I believe the answer is:
threaten
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">menace</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that menace can be written as threaten)</span><br/ ><br/ >'<span class="explanation-format__original">intimidate</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(intimidate can mean to scare or threaten)</span><br/ ><br/ ></span>
(Other definitions for threaten that I've seen before include "Look likely to" , "Be menacing" , "'Menace, intimidate (8)'" , "Warn of violence" , "Utter menaces" .)