Sick European brought up boy for novelist (7)

'novelist' is the definition.
(I know that Ellison has the occupation novelist)

'sick european brought up boy' is the wordplay.
'sick' becomes 'ill' (synonyms).
'european' becomes 'e' (abbreviation e.g. EU).
'brought up' says the letters should be written backwards (in a down clue, letters go up).
'boy' becomes 'son' (male child).
'ill'+'e'='ille'
'ille' written backwards gives 'elli'.
'elli'+'son'='ELLISON'

'for' acts as a link.