Possible Clues:

• Early twentieth century style painter
• Measure covering opening of studio for Picasso, say
• I left broken biscuit for artist
• Artist as Picasso, Braque
• At start of century, usually Braque is so termed
• Braque, e.g.
• Braque or Picasso, for example
• Braque, for one, in fashion again
• Modern artist, small in measure of forearm
• Painter like Picasso