More inquisitive (6)
I believe the answer is:
nosier
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">more inquisitive</span>' is the definition.<br/ ><span class="explanation-format__explanation">(nosy means overly inquisitive or curious)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for nosier that I've seen before include "rather curious" , "More curious in nasal way" , "Senior (anag)" , "comparatively curious" , "More inquisitive" .)