Cradlesong (7)
I believe the answer is:
lullaby
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cradlesong</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lullaby that I've seen before include "Soothing song for baby - Brahms wrote a good one" , "Soothing song for infants" , "Gentle song to put baby to sleep" , "Berceuse" , "soothe" .)