Conventional in a materialistic way? (6)
I believe the answer is:
stuffy
'conventional' is the definition.
(similar in meaning)
'materialistic way?' is the wordplay.
I cannot quite understand how this works, but
'way?' could be 'st' (abbreviation for street) and 'st' is located in the answer.
This explanation may well be incorrect...
'in a' acts as a link.
Can you help me to learn more?
(Other definitions for stuffy that I've seen before include "Priggish" , "Airless or dull and narrow-minded" , "Strait-laced -- lacking fresh air" , "Airless; unadventurous" , "Old-fashioned" .)