Legal official (6)
I believe the answer is:
notary
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">legal official</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for notary that I've seen before include "One authorised to certify legal documents" , "legal worker" , "Official working on legal documents" , "One authorised to perform certain legal functions" , "Solicitor authorised to administer oaths and certify documents" .)