Kind of people who follow the herd (7)
I believe the answer is:
nomadic
'kind of people who follow the herd' is the definition.
Both the answer and definition are adjectives. Perhaps there's an association between them I don't understand?
This is all the clue.
Can you help me to learn more?
(Other definitions for nomadic that I've seen before include "Given to wandering like travellers or Bedouins" , "Not settling" , "constantly moving" , "Perhaps unsettling" , "Of no fixed abode" .)