Brought up fake text for a PC? (3)
I believe the answer is:
doc
'text for a pc?' is the definition.
(document)
'brought up fake' is the wordplay.
'brought up' says the letters should be written backwards (in a down clue, letters go up).
'fake' becomes 'cod' (cod can mean false or inauthentic).
'cod' backwards is 'DOC'.
(Other definitions for doc that I've seen before include "Quack" , "Medic, in short" , "bones" , "Disney dwarf" , "Medical practitioner (abbr)" .)