Wooden hammer (6)
I believe the answer is:
mallet
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wooden hammer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for mallet that I've seen before include "Hammer for pegs or croquet" , "Type of hammer" , "Used to beat" , "It's used in croquet and polo" , "Hitting tool" .)