Dogs (6)
I believe the answer is:
hounds
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dogs</span>' is the definition.<br/ ><span class="explanation-format__explanation">(hounding is a kind of dogging)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for hounds that I've seen before include "Harasses like hunting dogs" , "Pursues relentlessly" , "'You can't run with the hare and hunt with the . . . . . .'" , "Dogs that go hunting in packs" , "Persecutes with dogs?" .)