Answer: slub

AnswerCrossword Clue
SLUBTwist, as wool.
slubthe fibers produced by slubbing
slubto extend (slivers of fiber) and twist slightly in carding
slubslight irregularity in yarn produced either accidentally or purposely by knotting or twisting or by including uneven lengths of fiber in spinning
slubto draw out and twist slightly, also SLUBB
SLUBSoft lump in yarn
SLUBLump in yarn
SLUBSlightly twisted wool
SLUBYarn knot
SLUBTextured sort of knit
SLUBYarn with nubbly fibers.
SLUBYarn with nubby fibers.
SLUBNubbly yarn.
SLUBDeliberate lump in fabric.
SLUBYarn with untwisted fibers.
SLUBRoll of fiber twisted slightly for spinning.
SLUBYarn with fibers untwisted at intervals.
SLUBYarn irregularity