Hindered, impeded (8)
I believe the answer is:
hampered
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">hindered</span>' is the first definition.<br/ ><span class="explanation-format__explanation">('hamper' can be a synonym of 'hinder')</span><br/ ><br/ >'<span class="explanation-format__original">impeded</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for hampered that I've seen before include "Impeded" , "Frustrated" , "Obstructed; handicapped" , "Hindered, cramped" , "Prevented free movement, restricted" .)