loose end

Определение loose end в Английский Язык Английский Язык словарь: A small job that needs to be done, or minor problem that needs to be resolved, before a task can be considered complete; The end of a rope that has not been fastened; work that is left incomplete; If you are at a loose end, you are bored because you do not have anything to do and cannot think of anything that you want to do. In American English, you usually say that you are at loose ends. Adolescents are most likely to get into trouble when they're at a loose end. A minor unresolved problem or difficulty, especially a final detail preceding the completion of something. Often used in the plural; A loose end is part of a story, situation, or crime that has not yet been explained. There are some annoying loose ends in the plot
loose ends: Leftover items that have not been addressed or attended to
I would have liked to stay later and tie up some of the loose ends.
be at a loose end: be in an uncertain or confused condition; be without any particular plans; be in unsettled position; be without any specific occupation (e.g., "Ever since leaving the company, my husband has been at a loose end")