Careless, hurried (8)
I believe the answer is:
slapdash
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">careless</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">hurried</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for slapdash that I've seen before include "Slipshod, careless" , "Hurried and careless" , "Perfunctory" , "Cowboy" , "In a careless manner" .)