See hotel's new number is wrong still (11)
I believe the answer is:
nonetheless
'still' is the definition.
(synonyms)
'see hotel's new number is wrong' is the wordplay.
'new' becomes 'n' (abbreviation as in New Testament NT).
'number' becomes 'n' (n can represent any number).
'is wrong' indicates an anagram.
'see'+'hotels'+'n'+'n'='seehotelsnn'
'seehotelsnn' anagrammed gives 'NONETHELESS'.
(Other definitions for nonetheless that I've seen before include "Still" , "However" , "Notwithstanding" , "In spite of that" , "Despite that" .)