Disturbed by a late visitor? (7)
I believe the answer is:
Here is my best explanation:
'disturbed by' is the definition.
The definition and answer can be both to do with human feelings as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?
I don't understand the rest of the clue.
(Other definitions for haunted that I've seen before include "Beset by spirits", "Spooky", "with the ghost still around?", "Possessed", "Tormented", "Ghost-ridden", "Full of ghosts", "Frequented by ghosts", "Inhabited by ghosts" and "Worried".)