Crucial point in arrangement of draw-sheet (9)
I believe the answer is:
watershed
'crucial point' is the definition.
The answer and definition can be both locations as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'arrangement of draw-sheet' is the wordplay.
'arrangement of' indicates anagramming the letters.
'draw'+'sheet'='drawsheet'
'drawsheet' is an anagram of 'WATERSHED'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for watershed that I've seen before include "It's OK to swear after this" , "Time for children to get away from TV" , "Line of high land from which streams flow in opposite directions" , "Time after which adult programmes may be shown" , "Dividing ridge between two rivers" .)