Teacher said you got into art deco movement (8)
I believe the answer is:
educator
'teacher' is the definition.
(someone who educates)
'said you got into art deco movement' is the wordplay.
'said you' becomes 'U' (homophone of 'you').
'got into' indicates putting letters inside.
'movement' is an anagram indicator (letters move around).
'art'+'deco'='artdeco'
'artdeco' with letters rearranged gives 'edcator'.
'u' placed inside 'edcator' is 'EDUCATOR'.
(Other definitions for educator that I've seen before include "mistress, say" , "master, say" , "Trainer, teacher" , "One who teaches others" , "coach" .)