French topper (5)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">french topper</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 beret that I've seen before include "Part of kit" , "Soft brimless cap" , "Soft flat hat" , "French-style hat" , "Kind of floppy cap with no peak" .)