Ring-tailed mammal (7)
I believe the answer is:
raccoon
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ring-tailed mammal</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 raccoon that I've seen before include "Small N American mammal" , "Omnivorous nocturnal mammal native to N and C America" , "North American omnivore" , "American nocturnal mammal" , "US nocturnal mammal" .)