Crossword Genius

Aggravated by lie altered on purpose (12)

Ross

I believe the answer is:

deliberately

'on purpose' is the definition.
('deliberately' can be a synonym of 'on purpose')

'aggravated by lie altered' is the wordplay.
'aggravated' indicates an anagram.
'by'+'lie'+'altered'='byliealtered'
'byliealtered' anagrammed gives 'DELIBERATELY'.

(Other definitions for deliberately that I've seen before include "On purpose" , "Consciously and intentionally" , "as intended" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app