Possible Clues:

• A tulip grows from one
• Tulip's earlier status
• Taken all round, one may make light of it
• Cry over daffodil here
• Good idea, symbolically
• Does it get around when it's the beginning of 10 across?
• Iris's base
• It's growing light
• Make light of it if you want it to grow
• Cry when upset, given onion