Hotel that's altered the records (10)
I believe the answer is:
dorchester
'hotel' is the definition.
(I have seen 'Famous hotel' mean 'dorchester' so perhaps 'hotel' could also mean 'dorchester')
'altered the records' is the wordplay.
'altered' indicates an anagram.
'the'+'records'='therecords'
'therecords' with letters rearranged gives 'DORCHESTER'.
'that's' acts as a link.
(Other definitions for dorchester that I've seen before include "Oxford or Dorset town" , "Abbey town south of Oxford" , "Famous hotel" , "historic town" , "Town in Oxfordshire or Dorset" .)