Shelflike projection (5)
I believe the answer is:
ledge
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shelflike projection</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 ledge that I've seen before include "Narrow projecting shelf as from window" , "Projecting ridge on a mountain" , "Mantelpiece" , "Ridge or shelf" , "Sill" .)