Cat in Japan the Ragdoll (7)
I believe the answer is:
panther
'cat' is the definition.
(I know that panther is a type of cat)
'in japan the ragdoll' is the wordplay.
'in' says the answer is hidden in the clue.
'PANTHER' can be found hidden inside 'japan the ragdoll'.
(Other definitions for panther that I've seen before include "animal!" , "See 2" , "Black leopard" , "Then rap the large black cat" , "big pussycat" .)