Possible Clues:

• It's blooming, crooked name and one more may be found in 17 down
• Sea creature in flower
• That blooming name has got confused with one
• Terribly mean to one pretty little thing
• That's blooming mean and twisted with one
• Tentacled feeder
• One Scottish warning rejected inside this plant
• It has cup-shaped flowers
• Plant of the buttercup family with brightly coloured flowers and deeply divided leaves
• The flower is no enema