Too much talk, as at the Aldgate centre (3)
I believe the answer is:
gas
'too much talk' is the definition.
'gas' can be an answer for 'talk' (gas can mean to chat). I'm unsure of the 'too much' bit.
'as at the aldgate centre' is the wordplay.
'at' is a charade indicator (letters next to each other) (I've seen this in other clues).
'centre' indicates the central letters.
The centre of 'aldgate' is 'g'.
'as' after 'g' is 'GAS'.
Can you help me to learn more?
(Other definitions for gas that I've seen before include "Something delightful" , "Oxygen maybe" , "Substance like air" , "Form of fossil fuel" , "eg CO2" .)