Broadcast corporation enlists one noted physicist (5)
I believe the answer is:
fermi
'noted physicist' is the definition.
(I've seen this in another clue)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for fermi that I've seen before include "Enrico, Italian Nobel prize physicist" , "Enrico -----, Italian nuclear physicist (1901-1954); in the US from 1939" .)