Quirky, eccentric (7)
I believe the answer is:
offbeat
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">quirky</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that quirky can be written as offbeat)</span><br/ ><br/ >'<span class="explanation-format__original">eccentric</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for offbeat that I've seen before include "Unusual or unconventional - perhaps in music" , "rather unorthodox" , "Strikingly unconventional" , "Odd, unconventional" , "Bohemian" .)