Periphery (6)
(Other definitions for margin that I've seen before include "Edge, border, fringe" , "Bland space around text" , "Blank space that surrounds the text on a page" , "Border or leeway" , "Bound" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">periphery</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for fringe that I've seen before include "Border; hair on brow" , "Finger (anag.)" , "Border - unofficial festival events" , "Outer edge; hair over forehead" , "Thrum" .)