The opposite of “in kind” (9)
I believe the answer is:
inversion
'the opposite of' is the definition.
(I've seen this before)
'in kind' is the wordplay.
'kind' becomes 'version' (version is a kind of kind).
'in'+'version'='INVERSION'
(Other definitions for inversion that I've seen before include "The opposite of" , "turning around" , "upsetting change" .)