Excessive adoration (8)
I believe the answer is:
idolatry
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">excessive adoration</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 idolatry that I've seen before include "Worship of godly images" , "Extreme admiration" , "Excessive adoration" , "Hero worship" , "Icon worship" .)