Cosh (8)
(Other definitions for bludgeon that I've seen before include "Cudgel" , "Blunt instrument" , "(Beat with a) heavy stick" , "Bully; heavy weapon" , "Thick club" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cosh</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for cudgel that I've seen before include "Blunt instrument" , "Truncheon-like weapon" , "Heavy staff, club" , "Bludgeon" , "brain" .)