Echidna or platypus (9)
I believe the answer is:
monotreme
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">echidna or platypus</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that anteater is a type of monotreme)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for monotreme that I've seen before include "Creature such as the platypus" , "Australian mammal" .)