Related Clues:

• Loftier (anag.)
• Hard work keeping whistle-blower in clover!
• Whistle-blower interrupting work in plant
• Loftier, straggling plant
• Whistle-blower stops hard labour in plant
• Small clover-like plant
• Leaf divided into three sections
• Plant finally sent soldiers sword
• Sweat-covered man in middle of field finding shamrock?
• Loftier (anag) — plant
• Girl Scouts symbol
• Three-lobed design
• Plant person on field to get stuck into work
• Loftier (anag) — clover-like plant
• Whistler painting attributed to Turner at first — that's a bloomer