Of cats (6)
I believe the answer is:
feline
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">of cats</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for feline that I've seen before include "suitable for Skimbleshanks?" , "Scots dish" , "Like a leopard, say" , "Relating to cats" , "An animal of the cat family" .)