Hair accessory (6)
(Other definitions for ribbon that I've seen before include "Strip of ornamental cloth as for hair" , "Decorative strip of material" , "Streamer" , "Narrow strip of material for decoration" , "Long strip of material" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hair accessory</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>