International body type is mean (6)
I believe the answer is:
unkind
'mean' is the definition.
(I've seen this before)
'international body type' is the wordplay.
'international body' becomes 'un'.
'type' becomes 'kind' (I've seen this before**).
'un'+'kind'='UNKIND'
'is' is the link.
(Other definitions for unkind that I've seen before include "Mean, pitiless" , "Not considerate or humane" , "Inconsiderate or harsh towards others" , "Cruel, harsh" , "Hardhearted" .)