Painting style adopted by Picasso particularly (2,3)
I believe the answer is:
op art
'painting style' is the definition.
(I've seen this before)
'adopted by picasso particularly' is the wordplay.
'adopted by' says the answer is hidden in the clue.
'OP ART' is hidden within 'picasso particularly'.
(Other definitions for op art that I've seen before include "picture, apparently" , "Sixties movement" , "modern paintings" , "Illusory paintings" , "Illusory genre" .)