Crossbred hunting dog (7)
I believe the answer is:
lurcher
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">crossbred hunting dog</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lurcher that I've seen before include "Dog like greyhound" , "Greyhound-like dog" , "Not a sure-footed" , "moving suddenly and unsteadily?" , "The dog to stagger" .)