Document carrier (9)
(Other definitions for briefcase that I've seen before include "See fabric covering container for business papers" , "Carrying container for files" , "providing security for the papers" , "One transfers papers" , "Carried by lawyer" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">document carrier</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 attache case that I've seen before include "Carrier for documents, etc" , "Document carrier" , "Small briefcase" , "Diplomatic incident" , "This will grip the papers" .)