Unpleasant place for ditch (4)
I believe the answer is:
dump
This could be a double definition.
'unpleasant place' is the first definition.
'dump' can be an answer for 'place' (I have seen 'Rubbishy place' mean 'dump' so perhaps 'place' could also mean 'dump'). I'm not sure about the 'unpleasant' bit.
'for ditch' is the second definition.
(I've seen this before)
Can you help me to learn more?
(Other definitions for dump that I've seen before include "Ditch - rubbish tip" , "number two" , "Jilt" , "Disposal site" , "Empty out" .)