Pesters (7)
I believe the answer is:
badgers
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pesters</span>' is the definition.<br/ ><span class="explanation-format__explanation">('badger' can be a synonym of 'pester')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for badgers that I've seen before include "Pesters; black and white nocturnal animals" , "Bullies" , "Burrowing mammals with strong claws" , "Pesters like burrowing animals" .)