Underground worker inspiring awe, extraordinary communicator (4-6)
I believe the answer is:
mind-reader
'extraordinary communicator' is the definition.
'mind reader' can be an answer for 'communicator' (mind reader is a kind of communicator). I am not sure about the 'extraordinary' bit.
'underground worker inspiring awe' is the wordplay.
'underground worker' becomes 'miner' (I've seen this before).
'inspiring' indicates putting letters inside.
'awe' becomes 'dread' (I've seen this before).
'miner' going around 'dread' is 'MIND-READER'.
Can you help me to learn more?
(Other definitions for mind-reader that I've seen before include "one with special powers" , "One with psychic powers" , "stage entertainer" , "Telepathist" , "Thought diviner" .)