Adolescent affliction (4)
I believe the answer is:
acne
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">adolescent affliction</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 acne that I've seen before include "Teenage skin blemish" , "Teenage spots" , "Skin complaint" , "Adolescent skin disease" , "Pimply skin condition of adolescence" .)