Persistent
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">persistent</span>' is the definition.<br/ ><span class="explanation-format__explanation">(a chronic condition is a persistent one)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for chronic that I've seen before include "Deep-seated - long-lasting" , "Long-lasting; deplorable" , "Long-lasting, pain perhaps" , "Of illness, prolonged or constantly recurring" , "Awful" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">persistent</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that persistent can be written as dogged)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for dogged that I've seen before include "Stubbornly persisting" , "Follow closely - persistent" , "Stubbornly persistent in canine way" , "Stubborn or determined in canine manner" , "Pursued - unflagging" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">persistent</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that persistent can be written as relentless)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for relentless that I've seen before include "Allowing no respite" , "Dogged" , "Persistent" , "Inexorable" , "Uncompromising" .)