Crossword Genius

Communication technologies ultimately coming to the summit? (8)

Ross

I believe the answer is:

speaking

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'communication' is the definition.
(I know that speaking is a type of communication)

'technologies ultimately coming to the summit?' is the wordplay.
'ultimately' indicates one should take the final letters.
'coming' becomes 'ing' (I can't justify this - if you can you should give a lot more credence to this answer).
'to' says to put letters next to each other (I've seen this in other clues).
'the summit?' becomes 'peak' (mountain peak).
The final letter of 'technologies' is 's'.
'ing' put after 'peak' is 'peaking'.
's'+'peaking'='SPEAKING'

Can you help me to learn more?

(Other definitions for speaking that I've seen before include "Saying something" , "oratory" , "Uttering" , "conveying meaning" , "Talking" .)

I've seen this clue in The Times.
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