Pretentious style of cooking to disguise portions being smaller (8,7)
I believe the answer is:
nouvelle cuisine
'disguise portions being smaller' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'pretentious style of cooking' is the wordplay.
'pretentious' becomes 'nouvelle' (I am not sure about this - if you are sure you should believe this answer much more).
'style of cooking' becomes 'cuisine' (I've seen this before).
'nouvelle'+'cuisine'='NOUVELLE-CUISINE'
'to' is the link.
Can you help me to learn more?
(Other definitions for nouvelle cuisine that I've seen before include "fresh food" , "Not much to down" , "way of cooking" , "light refreshment" , "Style of cooking" .)