Weaver's machine (4)
I believe the answer is:
loom
'weaver's machine' 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" , "weaver" , "Come into view" , "Weaving instrument" , "Weaving - apparatus - overhang" .)