Conventional, correct (6)
I believe the answer is:
proper
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">conventional</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">correct</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(associated in meaning)</span><br/ ><br/ ></span>
(Other definitions for proper that I've seen before include "Genuine; respectable" , "Appropriate description" , "Correct; respectable" , "Real; genuine" , "Genuine; part of church service" .)