Withdraw from a commitment (4,3)
I believe the answer is:
back out
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">withdraw from a commitment</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for back out that I've seen before include "Withdraw from agreement, or reverse car from driveway" , "in the open air again?" , "Get cold feet" , "Withdraw from agreement in outback" , "Withdraw from a commitment" .)