Unbosom (7)
I believe the answer is:
confide
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unbosom</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that confide is a is a kind of of unbosom)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for confide that I've seen before include "Tell secret as to friend - mum's the word" , "Trust wholly (in person)" , "Impart secrets to someone" , "Tell secret or entrust to" .)