Rough patch? (4)
I believe the answer is:
acne
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">rough patch?</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 acne that I've seen before include "Youthful problem" , "Skin condition prevalent among teenagers" , "Cane for the teenager?" , "Spotty coverage" , "Inflammation of glands in skin" .)