Possible Clues:

• Herb planted in tub, as I like
• Sherlock Holmes portrayer Rathbone
• Herb garden staple
• Plant ready for security fences in seconds
• Lecturer leaving Essex town plant
• Herb - Fawlty of Fawlty Towers
• Man is in political party, rising
• Spaghetti sauce ingredient
• Saint using extract from Job as illustration
• Spaghetti sauce seasoning