Board at base of wall (8)
I believe the answer is:
skirting
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">board at base of wall</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 skirting that I've seen before include "Avoiding the issue, or trying to" , "fabric" , "around walls of room?" , "Going around the edge" , "Material" .)