Wrong item for smokers hotel's put out (6)
I believe the answer is:
astray
'wrong' is the definition.
(going astray is going wrong)
'item for smokers hotel's put out' is the wordplay.
'item for smokers' becomes 'ashtray' (item used when smoking).
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'put out' indicates named letters should be taken away.
'ashtray' with 'h' taken away is 'ASTRAY'.
(Other definitions for astray that I've seen before include "wide of the mark" , "Up the garden path?" , "Off the right track" , "on the wrong road" , "Off the correct path" .)