Plug in toy Minion (5)
I believe the answer is:
toady
'minion' is the definition.
(thesaurus)
'plug in toy' is the wordplay.
'plug' becomes 'ad' (as in plugging a product).
'in' is an insertion indicator.
'ad' placed within 'toy' is 'TOADY'.
(Other definitions for toady that I've seen before include "Curry favour" , "Creep" , "Person who flatters and behaves obsequiously to another" , "Bootlicker" , "fawn" .)