Nothing brought back old style printing machine (8)
I believe the answer is:
linotype
'printing machine' is the definition.
(linotype is a kind of printing machine)
'nothing brought back old style' is the wordplay.
'nothing' becomes 'nil' (eg nil is zero in football).
'brought back' says the letters should be written backwards.
'old' becomes 'o' (abbreviation).
'style' becomes 'type' (both can mean a variety or kind).
'nil' written backwards gives 'lin'.
'lin'+'o'+'type'='LINOTYPE'
(Other definitions for linotype that I've seen before include "Composing machine that produces lines of words in strips of metal" , "Old composing machine produced words in metal strips" , "Old-style typesetting machine" .)