Machine for weaving (4)
I believe the answer is:
loom
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">machine for weaving</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for loom that I've seen before include "'Appear as a vague form, perhaps threatening (4)'" , "Weaving - apparatus - overhang" , "Apparatus for weaving cloth" , "Rise up threateningly ahead" , "Appear large and indistinct, to weave?" .)