Answer:

looseend

Answer	Crossword Clue
LOOSEEND	Detective's bane
LOOSEEND	Detail to tie up
LOOSEEND	Open-and-shut case spoiler

LOOSEEND	Unresolved detail
LOOSEEND	Unsettled detail
LOOSEEND	It's meant to be tied up
LOOSEEND	Unresolved difficulty
LOOSEEND	Unfinished business
LOOSEEND	Detail to "tie up"
LOOSEEND	Fragment of unfinished business.
LOOSEEND	Something to tie up

LOOSEEND	Bit of unfinished business