Trash lies scattered behind London attraction (9)
I believe the answer is:
vandalise
'trash' is the definition.
(I've seen this before)
'lies scattered behind london attraction' is the wordplay.
'scattered' indicates an anagram.
'behind' says to put letters next to each other.
'london attraction' becomes 'vanda' (I can't explain this - if you can you should believe this answer much more).
'lies' with letters rearranged gives 'lise'.
'lise' after 'vanda' is 'VANDALISE'.
Can you help me to learn more?
(Other definitions for vandalise that I've seen before include "Deliberately damage" , "Inflict malicious damage" , "Destroy" , "trash" , "Wilfully damage" .)