Book jacket info (5)
I believe the answer is:
blurb
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">book jacket info</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for blurb that I've seen before include "Short description on a book, etc" , "Promotional text for a book" , "Enticing paragraph" , "Publisher's puff" , "Brief commendatory advertisement" .)