Hitch, reversal (7)
I believe the answer is:
setback
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">hitch</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">reversal</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that reversal can be written as setback)</span><br/ ><br/ ></span>
(Other definitions for setback that I've seen before include "Hitch" , "Problem" , "Reverse" , "Snag" , "unfortunate event" .)