Like a fine opportunity to get information about the aged (6)
I believe the answer is:
golden
'like a fine opportunity to' is the definition.
I can't judge whether this definition defines the answer.
'information about the aged' is the wordplay.
'information' becomes 'gen' (gen can informally mean information).
'about' means one lot of letters goes inside another.
'the aged' becomes 'old' (I've seen this before).
'gen' going around 'old' is 'GOLDEN'.
'get' acts as a link.
Can you help me to learn more?
(Other definitions for golden that I've seen before include "Autumnal flower" , "Type of apple" , "In Woodstock we are this" , "Colour of the fleece sought by Jason" , "'The silver apples of the moon / the . . . . . . apples of the sun' (Yeats)" .)