Embarrassed performer? One may have changed the text (8)
I believe the answer is:
redactor
'one may have changed the text' is the definition.
I can't tell whether this definition defines the answer.
'embarrassed performer?' is the wordplay.
'embarrassed' becomes 'red' (I've seen this before).
'performer?' becomes 'actor' (actor is a kind of performer).
'red'+'actor'='REDACTOR'
Can you help me to learn more?
(Other definitions for redactor that I've seen before include "Editor" , "One needs to make some changes" , "literary organiser" , "someone to supervise church magazine?" .)