Moorish palace (8)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">moorish palace</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 alhambra that I've seen before include "Famous Moorish palace near Granada in Spain" , "Great 14th century Moorish palace near Granada in Spain" .)