Turning machine (5)
I believe the answer is:
lathe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">turning machine</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 lathe that I've seen before include "This is turned out" , "Wood-turning machine" , "Wood-shaping machine" , "craftsman's machine" , "Turning instrument" .)