Wasp nest sites
I believe the answer is:
eaves
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wasp nest sites</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for eaves that I've seen before include "Part of a building's roof that overhangs the walls" , "Roof projection" , "parts of housetops" , "Projecting edge of a roof" , "Overhang at edge of a roof" .)