Based on the clue 'change one letter in elder a shrub that may reach ...', what is the answer?

Based on the clue 'change one letter in champ to get this word for a ...', what is the answer? Based on the clue 'change one letter in coin it becomes this veggie', what is the answer? Based on the clue 'change one letter in cord make this feudal title', what is the answer? Based on the clue 'change one letter in corn make it this small rope', what is the answer? Based on the clue 'change one letter in load make this element', what is the answer? Based on the clue 'change one letter in lord make this verb meaning ...', what is the answer? Based on the clue 'change one letter in the herb yarrow youll get th...', what is the answer? Based on the clue 'change one letter in van dyck to get the name of t...', what is the answer?