“Full houses,” model said (6)
I believe the answer is:
stated
'said' is the definition.
('state' can be a synonym of 'say')
'full houses model' is the wordplay.
'full' becomes 'sated' (I am not sure about this - if you are sure you should believe this answer much more).
'houses' means one lot of letters goes inside another.
'model' becomes 't' (Ford Model T car).
'sated' going around 't' is 'STATED'.
Can you help me to learn more?
(Other definitions for stated that I've seen before include "Announced" , "Expressed in written or spoken words" , "Definitely expressed" , "Close-fitting; drunk" , "Said firmly, averred" .)