Mattel product (4)
I believe the answer is:
doll
'mattel product' is the definition.
(I know that Mattel product or material produced doll)
This is all the clue.
(Other definitions for doll that I've seen before include "Small replica of a person" , "Figurine" , "Toy replica of a person" , "Puppet" , "Toy model of person" .)