Autographed (6)
I believe the answer is:
signed
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">autographed</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for signed that I've seen before include "Authorised (in writing)" , "Wrote one's name" , "Gestured with meaning" , "Autographed" , "Subscribed" .)