I printed changes in bold (8)
I believe the answer is:
intrepid
'bold' is the definition.
('intrepid' can be similar in meaning to 'bold')
'i printed changes in' is the wordplay.
'changes' indicates anagramming the letters.
'in' indicates putting letters inside.
'printed' with letters rearranged gives 'intrepd'.
'i' inserted within 'intrepd' is 'INTREPID'.
(Other definitions for intrepid that I've seen before include "Fearlessly adventurous" , "Afraid not" , "Unfearing" , "Invulnerable to fear" , "stout" .)