Not looked after (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not looked after</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">not looked after</span>' is the wordplay.<br/ >'<span class="explanation-format__original">not</span>' becomes '<span class="explanation-format__intermediate">un</span>' <span class="explanation-format__explanation">(I've seen this in other clues)</span>.<br/ >'<span class="explanation-format__original">looked after</span>' becomes '<span class="explanation-format__intermediate">tended</span>' <span class="explanation-format__explanation">(tending is a kind of looking after)</span>.<br/ >'<span class="explanation-format__intermediate">un</span>'+'<span class="explanation-format__intermediate">tended</span>'='<span class="explanation-format__answer">UNTENDED</span>'<br/ ></span>
(Other definitions for untended that I've seen before include "Neglected" , "Not properly cared for" , "Left without attention or minder" , "Not looked after" .)
(Other definitions for neglected that I've seen before include "Ignored or failed to do" , "Failed to do or to attend to" , "Not cared for" , "Overgrown" , "Disregarded or failed to do something" .)