Spiel over new model (7)
I believe the answer is:
pattern
'model' is the definition.
(pattern is a kind of model)
'spiel over new' is the wordplay.
'spiel' becomes 'patter' ('patter' can be a synonym of 'spiel').
'over' says to put letters next to each other.
'new' becomes 'n'.
'patter'+'n'='PATTERN'
(Other definitions for pattern that I've seen before include "Repeated decorative design" , "Stencil" , "Blueprint, design" , "Shape or design" , "Representative sample" .)