Weaver's contraption (4)
I believe the answer is:
loom
'weaver's contraption' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for loom that I've seen before include "Weaving machine to appear indistinctly" , "Weaving - apparatus - overhang" , "Appear indistinctly, in threatening form" , "Textile machine; come into sight" , "See 12" .)