Arrange by kind (4)
I believe the answer is:
sort
I believe this clue is a double definition.
'arrange' is the first definition.
(I've seen this before)
'kind' is the second definition.
(synonyms)
'by' acts as a link.
(Other definitions for sort that I've seen before include "Kind, type or make" , "Work out" , "Arrange in order" , "Shuffle into desired sequence" , "The kind to categorise" .)