Shocking surprise (9)
I believe the answer is:
bombshell
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shocking surprise</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 bombshell that I've seen before include "attractive blonde" , "Overwhelming surprise" , "Big surprise" , "A great surprise" , "big disappointment" .)