Close result — disastrous conclusion (6,3)
I believe the answer is:
sticky end
'disastrous conclusion' is the definition.
'sticky end' can be an answer for 'conclusion' (I have seen 'Unpleasant conclusion' mean 'sticky end' so perhaps 'conclusion' could also mean 'sticky end'). I'm not certain of the 'disastrous' bit.
'close result' is the wordplay.
'close' becomes 'sticky' (I've seen this before).
'result' becomes 'end' (I've seen this in other clues).
'sticky'+'end'='STICKY END'
Can you help me to learn more?
(Other definitions for sticky end that I've seen before include "Unhappy destiny" , "disaster" , "Unpleasant death" , "Unpleasant conclusion" .)