Venetian blind part (4)
I believe the answer is:
slat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">venetian blind part</span>' is the definition.<br/ ><span class="explanation-format__explanation">('slat' is part of 'venetian blind')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for slat that I've seen before include "Part of a Venetian blind" , "Thin strip" .)