Message received: first real ogre seen around (5)
I believe the answer is:
roger
'message received' is the definition.
(radio communications)
'real ogre seen around' is the wordplay.
'real ogre' becomes 'roge' (I can't explain this - if you can you should believe this answer much more).
'seen' becomes 'learned' ('learn' can be a synonym of 'see').
'around' says to take the centre.
The middle of 'learned' is 'r'.
'roge'+'r'='ROGER'
'first' is the link.
Can you help me to learn more?
(Other definitions for roger that I've seen before include "Man's name" , "man, > I understand" , "Chap" , "Ackroyd" , "Casement, say" .)