Picasso-Braque movement (6)
I believe the answer is:
cubism
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">picasso-braque movement</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 cubism that I've seen before include "Artistic movement for which Picasso was famous" , "Art style of Picasso" , "Artistic movement in France beginning in early 20th century" , "Early twentieth century painting style" , "Art movement pioneered by Braque and Picasso before 1914" .)