Possible Clues:

• Seed to be coming from seasonal log, it's said
• Overrule, to avoid mistake, plan for part of plant
• Part of plant ovary which becomes seed
• Egg appropriate to festive season, it's said
• Small plant structure that develops into a seed
• Part of flower derived from common parts in marvellous evolution?
• You in love or just seedy?
• Future 122-Across
• Move mules -- both stripped part of plant
• Early stage seed