Possible Clues:

• Spring plant with bell-shaped flowers
• Rows pond (anag)
• Channel 4 newsreader getting sack for bloomer
• Bloomer as second doctor comes in immediately before operation
• Sun presently lower -- an early sign of spring?
• It comes in winter to medic returning Italian flower for blooming milky sort
• No longer keep supporting small plant
• In the South, now that it's fall? No, you get it now that it's spring