Crossword Genius

Express broadband provider - not half! (4)

Ross

I believe the answer is:

talk

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

This clue could be a double definition.

'express broadband provider' is the first definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'not half' is the second definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.

Can you help me to learn more?

(Other definitions for talk that I've seen before include "Gas" , "that's said to be cheap" , "Discussion" , "Chat" , "Utter" .)

I've seen this clue in The Independent.
Want a hint initially instead of a full solution? Install my app