Attentive, observant (7)
I believe the answer is:
heedful
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">attentive</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(heedful can mean listening or paying attention)</span><br/ ><br/ >'<span class="explanation-format__original">observant</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for heedful that I've seen before include "Attentive, listening carefully" , "Paying careful attention" , "Cautious" , "Attentive - circumspect" , "Prudent" .)