Possible Clues:

• Genus of flowering plant
• That's a peculiar sort of a bloomer
• Plant producing a strong liquor
• A sort of lily.
• Lily will get you a little drink
• A spirit for a lily
• That's a blooming 21 across sort of thing
• That's a blooming odd class of a drink
• That's an odd sort of a thing to get from a bulb
• A climbing French wall plant