Hotel tosses out person holding a party (7)
I believe the answer is:
hostess
'person holding a party' is the definition.
(woman hosting a party)
'hotel tosses out' is the wordplay.
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'out' is an anagram indicator (out can mean wrong or inaccurate).
'tosses' with letters rearranged gives 'ostess'.
'h'+'ostess'='HOSTESS'
(Other definitions for hostess that I've seen before include "Plane stewardess" , "Mistress of ceremonies" , "party organiser" , "Female entertainer" , "She entertains guests" .)