Radio operator (3)
I believe the answer is:
ham
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">radio operator</span>' is the definition.<br/ ><span class="explanation-format__explanation">(as in ham radio)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ham that I've seen before include "Poor person acting" , "Thespian who overacts, informally" , "Noah's second son - a bad actor?" , "under twenty-eight [HIP]" , "Meat from a pig" .)