Falling star to encounter gloomy fellow on the radio (6)
I believe the answer is:
meteor
'falling star' is the definition.
(I've seen this before)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for meteor that I've seen before include "rock falling to earth" , "Remote sort of heavenly body" , "streaker?" , "extraterrestrial debris" , "Solar System body" .)