Condemned area between Truro and Slough (7)
I believe the answer is:
trashed
'condemned' is the definition.
The definition and answer can be both to do with communicating as well as being past participle verbs.
Perhaps you can see a link between them that I can't see?
'area between truro and slough' is the wordplay.
'area' becomes 'a' (maths abbreviation).
'between' means one lot of letters goes inside another.
'truro' becomes 'tr' (I can't explain this - if you can you should believe this answer much more).
'and' says to put letters next to each other.
'slough' becomes 'shed' (both can mean to remove or lose).
'tr'+'shed'='trshed'
'a' going within 'trshed' is 'TRASHED'.
Can you help me to learn more?
(Other definitions for trashed that I've seen before include "Criticised" , "Destroyed" , "Vandalised" , "completely taken apart" .)