Tornados hit hotel, startling hosts (7)
I believe the answer is:
telstar
'tornados hit' is the definition.
(hit song by the Tornados)
'hotel startling hosts' is the wordplay.
'hosts' indicates the answer is hidden within the clue.
'TELSTAR' is hidden in the letters of 'hotel startling'.
(Other definitions for telstar that I've seen before include "Communication satellite" , "Distant transmitter" , "Early sixties satellite" , "Old satellite" , "Communications satellite" .)