Amateur radio operator (3)
I believe the answer is:
ham
'amateur radio operator' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ham that I've seen before include "Meat; radio operator" , "Dried pig thigh" , "Poor person acting" , "Noah's second son - a bad actor?" , "An actor who overdoes it in meaty way" .)