Shout of delight (6)
I believe the answer is:
yippee
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shout of delight</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 yippee that I've seen before include "Hurray" , "Shout of wild delight" , "expression of celebration" , "Cry of wild delight" , "Cry of excitement" .)