Possible Clues:

• Advice about extremely unusual cause of mania once
• Bloomer made by union leader taking pound in gratuity
• Flower of the Netherlands
• Point across college to Lily's relative
• Flower - lit up (anag)
• Flower named for its resemblance to a turban
• Holland bloom
• Bulb in a bed
• Bloomer of Amsterdam
• Perennial bulb