One booked into hotel has seen dirt all over the place (8)
I believe the answer is:
resident
'one booked into hotel' is the definition.
(someone residing in a hotel)
'seen dirt all over the place' is the wordplay.
'all over the place' indicates an anagram.
'seen'+'dirt'='seendirt'
'seendirt' with letters rearranged gives 'RESIDENT'.
'has' is the link.
(Other definitions for resident that I've seen before include "Liver" , "Person living in" , "Someone with a home" , "Lodger" , "Dwelling in a place for some time" .)