Deprive of prominence (7)
I believe the answer is:
eclipse
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">deprive of prominence</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 eclipse that I've seen before include "A deliquium" , "Block" , "Darkening of the sun" , "Throw into shade, like a heavenly body" , "Obscure, as moon may the sun" .)