Neglected super group almost forced into retiring (6)
I believe the answer is:
shabby
'neglected super group' is the definition.
'shabby' can be an answer for 'neglected' (I've seen this in another clue). I'm not sure about the 'super group' bit.
'almost forced into retiring' is the wordplay.
'almost forced' becomes 'abb' (I can't explain this - if you can you should believe this answer much more).
'into' is an insertion indicator.
'retiring' becomes 'shy' (both can mean reserved or introverted).
'abb' going inside 'shy' is 'SHABBY'.
Can you help me to learn more?
(Other definitions for shabby that I've seen before include "Showing signs of wear and tear" , "in worn and dirty clothes" , "Of clothes, worn and threadbare (6)" , "Badly clad - sort of trick?" , "Worn and dirty; mean" .)