Shop sign (4)
I believe the answer is:
open
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shop sign</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for open that I've seen before include "Frank; not closed" , "See 12" , "William --, English poet" , "Without concealment" , "sporting competition" .)