Large amount of data about a talk (3)
I believe the answer is:
gab
'a talk' is the definition.
(I've seen this in another clue)
'large amount of data' is the wordplay.
I cannot quite understand how this works, but
'amount' could be 'ab' (Ab is an example) and 'ab' is located in the answer.
A single letter 'g' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
'about' acts as a link.
Can you help me to learn more?
(Other definitions for gab that I've seen before include "gossip" , "Talk, chatter (colloq.)" , "Loquacity the gift of it" , "The gift of the . . . is ability to talk fluently" , "Talk a lot" .)