Possible Clues:

• Come down on workers and their offspring?
• Offspring drawn regularly into paths leading downwards
• Family take a dip, busy creatures
• Relative youngsters in a line
• Grandkids, e.g.
• Who form lines and swoop down on insects
• More than one follower in family and sect ends badly
• They extend a line — casts twice end badly
• Holds forth about the purpose of posterity
• People in a line