Designed as Manet reproduction (5)
I believe the answer is:
meant
'designed' is the definition.
(I've seen this before)
'manet reproduction' is the wordplay.
'reproduction' indicates anagramming the letters.
'manet' anagrammed gives 'MEANT'.
'as' acts as a link.
(Other definitions for meant that I've seen before include "intimated" , "Intended, had in mind" , "proposed" , "planned" , "Denoted" .)