Humming (5)
I believe the answer is:
abuzz
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">humming</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for abuzz that I've seen before include "In a state of activity" , "Filled with humming" , "Excited (like a hive?)" , "Excitedly" .)