Tall mammal (7)
I believe the answer is:
giraffe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tall mammal</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for giraffe that I've seen before include "A long-legged creature" , "Tall quadruped" , "Tallest living quadruped" , "Long-necked ruminant" , "Long-necked browser" .)