Wall scribblings (8)
I believe the answer is:
graffiti
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wall scribblings</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 graffiti that I've seen before include "Scribbled drawings in public places" , "Mural artwork" , "Scribblings on the walls of buildings" , "Scrawls on walls - fair gift" , "Words or drawings scrawled on walls" .)