Talk with a noted teetotaller during tea (7)
I believe the answer is:
chatter
'talk' is the definition.
(I know that chatter is a type of talk)
'with a noted teetotaller during tea' is the wordplay.
'with' indicates putting letters inside.
'a noted' becomes 'e' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'teetotaller' becomes 'tt' (abbreviation).
'during' is an insertion indicator.
'tea' becomes 'char' (I've seen this before).
'tt' placed within 'char' is 'chattr'.
'e' inserted inside 'chattr' is 'CHATTER'.
Can you help me to learn more?
(Other definitions for chatter that I've seen before include "Idle talk" , "Talk informally" , "Talk idly" , "Idle gossip" , "Rabbit on" .)