Window framework (4)
I believe the answer is:
sash
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">window framework</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 sash that I've seen before include "Band of cloth" , "Baldrick" , "Cummerbund" , "Brown bread for waist or shoulder" , "Waistband - type of window" .)