Crossword Genius

Ray George has morning with mother (5)

Ross

I believe the answer is:

gamma

I'm a little stuck... Click here to teach me more about this clue!

'ray' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'george has morning with mother' is the wordplay.
'george' becomes 'g'.
'has' means one lot of letters go next to another.
'morning' becomes 'am'.
'with' means one lot of letters go next to another.
'mother' becomes 'ma' (Ma is another word for mother or mum).
'g'+'am'+'ma'='GAMMA'

Can you help me to learn more?

(Other definitions for gamma that I've seen before include "A bit of Greek" , "Foreign character" , "Letter from Greece" , "Greek letter - type of rays" , "Letter after alpha, beta" .)

I've seen this clue in the Sydney Morning Herald.
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