Pair of posters recalled artistic movement (4)
I believe the answer is:
dada
'artistic movement' is the definition.
(Dada is an example)
'pair of posters recalled' is the wordplay.
'pair' says to double the letters.
'of posters' becomes 'ad' (I can't explain this - if you can you should give a lot more credence to this answer).
'recalled' shows that the letters should be reversed in order (to recall can mean to bring something back).
'ad' reversed gives 'da'.
'da' doubled is 'DADA'.
Can you help me to learn more?
(Other definitions for dada that I've seen before include "Early C 20 art movement" , "Early 20th-century nihilist arts movement" , "short-lived artistic movement" , "Art movement; father" , "artistic trend" .)