Forge (6)
I believe the answer is:
smithy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">forge</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that forge can be written as smithy)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for smithy that I've seen before include "Blacksmith's workplace" , "Workplace for forging metal" , "Forge worker" , "Vulcan was concerned?" , "Old forge" .)