Italian aperitif
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">italian aperitif</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for campari that I've seen before include "Pinkish aperitif" , "Mildly bitter aperitif, often drunk with soda" , "bitter drink" , "Red, bitter-sweet Italian aperitif" .)