Adolescence (5)
(Other definitions for teens that I've seen before include "Adolescence" , "children" , "Years 13-19" , "13-19 age group" , "seven-year period" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">adolescence</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 youth that I've seen before include "Adolescence and early manhood" , "period before getting old" , "Adolescent" , "Young man" , "Youngsters" .)