Played odd role around a fabled source of wealth (8)
I believe the answer is:
eldorado
'source of wealth' is the definition.
(I've seen this before)
'played odd role around a' is the wordplay.
'played' is an anagram indicator (letters playing around).
'around' indicates putting letters inside.
'odd'+'role'='oddrole'
'oddrole' is an anagram of 'eldordo'.
'eldordo' going around 'a' is 'ELDORADO'.
'fabled' acts as a link.
This may not be correct. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for eldorado that I've seen before include "rich land, so many thought" , "city, apparently lost" , "The golden land?" , "source of wealth" , "city of riches" .)