Pandemic watchdog televised doctor (3)
I believe the answer is:
who
'doctor' is the definition.
(as in the TV show Doctor Who)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for who that I've seen before include "Universal health body" , "international medical group" , "Fictional doctor" , "Alien doctor" , "Time-travelling Doctor" .)