Perforce (5-5)
I believe the answer is:
willy-nilly
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">perforce</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for willy-nilly that I've seen before include "Whether you like it or not" , "Randomly" , "Whether one likes it or not" , "Regardless of wishes" .)