eg Cleopatra's Needle (7)
I believe the answer is:
obelisk
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">eg cleopatra's needle</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 obelisk that I've seen before include "Cleopatra's Needle, for example" , "Tapering square pillar" , "Needle-like column" , "Tapering pillar erected as monument" , "Tall tapering pillar as monument or landmark" .)