Love ingredient in yesteryear's style (2,3)
I believe the answer is:
op art
'yesteryear's style' is the definition.
(historical artistic style)
'love ingredient' is the wordplay.
'love' becomes 'o' (love means zero in tennis).
'ingredient' becomes 'part'.
'o'+'part'='OP-ART'
'in' is the link.
(Other definitions for op art that I've seen before include "Created illusions" , "Abstract geometrical genre of painting" , "It may give the impression of movement" , "modern painting" , "confusing images" .)