Recalled some quartet pestering larger chamber group (6)
I believe the answer is:
septet
'larger chamber group' is the definition.
The answer and definition can be both groups as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'recalled some quartet pestering' is the wordplay.
'recalled' says the letters should be written backwards (to recall can mean to bring something back).
'some' indicates the answer is hidden within the clue (some parts of the word are used).
'tetpes' can be found hidden inside 'quartet pestering'.
'tetpes' in reverse letter order is 'SEPTET'.
Can you help me to learn more?
(Other definitions for septet that I've seen before include "Music piece for seven" , "G7" , "Heptad" , "Band of seven players" , "Snow White's companions?" .)