Eighth letter (5)
I believe the answer is:
aitch
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">eighth letter</span>' is the definition.<br/ ><span class="explanation-format__explanation">(in the alphabet)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for aitch that I've seen before include "the start of hives?" , "8th letter of the alphabet" , "character leading heroes" , "that may be dropped" , "Letter sound that's often dropped?" .)