Full of spirit (6)
I believe the answer is:
feisty
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">full of spirit</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 feisty that I've seen before include "Lively and quarrelsome" , "Lively; determined" , "Spirited -- argumentative" , "Spirited and lively" , "Tough" .)