Pledged (8)
I believe the answer is:
promised
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pledged</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for promised that I've seen before include "Gave one's word, pledged" , "undertaken" , "Betrothed" , "swore" , "Made a commitment to do" .)