Tall thin person (8)
I believe the answer is:
beanpole
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tall thin person</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 beanpole that I've seen before include "Man of unimpressive physique" , "Tall thin person - where runners are found?" , "pea stick" , "No, be pale if as tall and thin as this" , "runner climbing here" .)