Related Clues:

• Whistler painting attributed to Turner at first — that's a bloomer
• Small plant with three-lobed leaves
• Sort of knot judge has to work round
• Work hard enclosing judge’s leafy plant
• Ornamental tracery work probed by judge
• Plant of the pea family with clover-like leaves
• Plant where whistler comes into work
• Clover (unluckily?)