Bickering (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bickering</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for fuss that I've seen before include "Worry without reason" , "Furore" , "Bother, ado" , "Needless excitement" , "Protest -- excitement" .)
(Other definitions for atit that I've seen before include "up to no good?" , "what birds (and bees) do?" , "in Congress" .)