Exaggerated about court order, and set up computer link (11)

'exaggerated' is the definition.
(overwritten can mean exaggerated in writing)

'about court order and set up computer link' is the wordplay.
'about' becomes 'over' (both can mean around).
'court order' becomes 'writ' (I've seen this in another clue).
'and' says to put letters next to each other.
'set up' says the letters should be written backwards (in a down clue, letters go up).
'computer link' becomes 'net' (as in the internet).
'net' backwards is 'ten'.
'over'+'writ'+'ten'='OVERWRITTEN'