Cry of praise or joy (7)
I believe the answer is:
hosanna
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cry of praise or joy</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 hosanna that I've seen before include "Hebrew word in the Bible, an exclamation of praise" , "Shout of acclamation" , "Shout of praise" , "Cry of religious adoration, often in the highest" , "Said in praise of God" .)