Answer: unravelling

AnswerCrossword Clue
unravellingUNRAVEL, to separate the threads of
unravellingUndo (twisted, knitted, or woven threads)
unravelling(of twisted, knitted, or woven threads) Become undone
unravellingBegin to fail or collapse
unravellingInvestigate and solve or explain (something complicated or puzzling)
unravellingUnwind (something wrapped around another object)