Seem pleased to be the subject of a graphic exposure? (5)
I believe the answer is:
smile
'exposure?' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps there's an association between them I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for smile that I've seen before include "Facial expression showing pleasure" , "Indicate pleasure with lips movement" , "Grin" , "Appear amused" , "Pleased expression" .)