Group with old people getting dressed (8)
I believe the answer is:
bandaged
'dressed' is the definition.
(bandaging is a kind of dressing)
'group with old people' is the wordplay.
'group' becomes 'band' (band can mean a group of people).
'with' is a charade indicator (letters next to each other).
'old people' becomes 'aged' (the aged, ie elderly people).
'band'+'aged'='BANDAGED'
'getting' is the link.
(Other definitions for bandaged that I've seen before include "Dressed" , "strapped up" , "patched up?" .)