Plan to get English degree after school (6)
I believe the answer is:
schema
'plan' is the definition.
(schema is a kind of plan)
'english degree after school' is the wordplay.
'english' becomes 'e' (abbreviation).
'degree' becomes 'ma' (Master of Arts is a type of degree).
'after' says to put letters next to each other.
'school' becomes 'sch'.
'e'+'ma'='ema'
'ema' put after 'sch' is 'SCHEMA'.
'to get' is the link.
(Other definitions for schema that I've seen before include "Outline or model of a technical plan or theory" , "Proposed arrangement" , "essential form" , "Outline plan or theory - he's Mac (anag)" , "Synopsis" .)