Style large or small-scale reproduction (5)
I believe the answer is:
model
'small-scale reproduction' is the definition.
(small replica of something)
'style large' is the wordplay.
'style' becomes 'mode' (synonyms).
'large' becomes 'L' (eg in clothes sizes).
'mode'+'l'='MODEL'
'or' is the link.
(Other definitions for model that I've seen before include "Example to follow" , "Possibly the last" , "She saunters on the catwalk" , "Ideal example" , "Scale representation" .)