Selected for the team, but not on the wing (6)
I believe the answer is:
inside
'selected for the team' is the definition.
I can't tell whether this defines the answer.
'not on the wing' is the wordplay.
'not' becomes 'in' (I am not sure about this - if you are sure you should believe this answer much more).
'on' says to put letters next to each other (in a down clue, letters appear on others).
'the wing' becomes 'side' (eg the wings of a building are on its sides).
'in'+'side'='INSIDE'
'but' acts as a link.
Can you help me to learn more?
(Other definitions for inside that I've seen before include "Imprisoned" , "Jailed" , "banged up" , "Middle" , "confined" .)