Put in order? That’s kind! (4)
I believe the answer is:
sort
This clue is a double definition.
'put in order?' is the first definition.
(I've seen this before)
'kind' is the second definition.
('sort' can be a synonym of 'kind')
'that's' acts as a link.
(Other definitions for sort that I've seen before include "Group" , "Put in order" , "Arrange; category" , "choice of characters frequently used in statistics" , "'Variety, type (4)'" .)