One of TV's Simpsons
I think it could be either:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">one of tv's simpsons</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 bart that I've seen before include "Son in The Simpsons" , "Branch of Islam" , "Small title-holder being a brat" , "Homer's son" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">one of tv's simpsons</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 lisa that I've seen before include "Mona . . . ., famous painting by Leonardo da Vinci" , "Mona ..., also called La Gioconda" , "Most intelligent of Marge Simpson's children" , "Girl" , "Leonardo da Vinci painted the 'Mona ....'" .)