Coming from Lufthansa, tell it exactly, “Sputnik was one” (9)
I believe the answer is:
satellite
'sputnik was one' is the definition.
(Sputnik was a Soviet satellite)
'coming from lufthansa tell it exactly' is the wordplay.
'coming from' indicates the answer is hidden within the clue.
'SATELLITE' is hidden within 'lufthansa tell it exactly'.
(Other definitions for satellite that I've seen before include "Something in orbit" , "Communication device" , "Moon" , "space station, perhaps" , "Space traveller" .)