More suspicious (7)
I believe the answer is:
leerier
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">more suspicious</span>' is the definition.<br/ ><span class="explanation-format__explanation">('leery' can be a synonym of 'suspicious')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for leerier that I've seen before include "more cunning" , "more wary" .)