Afflicts (4)
I believe the answer is:
ails
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">afflicts</span>' is the definition.<br/ ><span class="explanation-format__explanation">('ail' can be a synonym of 'afflict')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ails that I've seen before include "Is unwell - sail away" , "Feels unwell" , "Is sick" , "Troubles; afflicts" , "Is ill or uneasy - sail away" .)