Unwarranted (5)
I believe the answer is:
undue
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unwarranted</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that unwarranted can be written as undue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for undue that I've seen before include "Needless; excessive" , "Excessive, unreasonable" , "Excessive - unwarranted" , "Not to be paid" , "Inappropriate - excessive" .)