Tear-jerking bulb (5)
I believe the answer is:
onion
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tear-jerking bulb</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for onion that I've seen before include "Head (slang); vegetable" , "Hot dog topping" , "One may be set" , "Strong tasting vegetable" , "Pungent edible bulb of the lily family" .)