Letters in sloping type (7)
I believe the answer is:
italics
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">letters in sloping type</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for italics that I've seen before include "They emphasise" , "Letters in sloping type" , "Sloping font" , "Cursive script" , "Typeface with letters slanting to the right" .)