Breast (5)
I believe the answer is:
bosom
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">breast</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for bosom that I've seen before include "5 [BUST]" , "This friend is dear and close" , "Breast, chest" , "Woman's breast" , "Chest; very close (friend)" .)