Spiel from salesman with new model (7)
I believe the answer is:
pattern
'model' is the definition.
(synonyms)
'spiel from salesman with new' is the wordplay.
I cannot really understand how this works, but
'spiel' could be 'patter' (synonyms) and 'patter' is found in the answer.
'new' could be 'n' (common abbreviation eg NT for New Testament) and 'n' is found within the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for pattern that I've seen before include "A guide for making something" , "Arrangement of repeated parts of design" , "Model - design - example" , "Design for copying" , "Decorative design; model" .)