Minor problem (6)
I believe the answer is:
hiccup
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">minor problem</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for hiccup that I've seen before include "Glitch" , "Spasm of the diaphragm or an informal hitch" , "Sudden throat sound or minor mishap" , "slight setback" , "minor issue" .)