Possible Clues:

• Climbing rose
• Rose to talk at length on the origin of Richmond
• Person who takes long walks in the country
• One rose and went on walkabout
• Rose and Richard, Eric's brother?
• Start to read thriller author, one who's very verbose?
• Walker who's not heading for the point
• Rose - that goes for country walks?
• Kind of climbing rose
• Rose, for one, doesn't stick to the point