Insipid interior of Puebla Hotel (4)
I believe the answer is:
blah
'insipid' is the definition.
(thesaurus)
'interior of puebla hotel' is the wordplay.
'interior of' indicates the answer is hidden within the clue.
'BLAH' is hidden in the letters of 'puebla hotel'.
(Other definitions for blah that I've seen before include "Bombast" , "Pretentious waffle" , "Claptrap" , "Pretentious nonsense" , "Insipid" .)