Legendary city of fabulous wealth (8)
(Other definitions for el dorado that I've seen before include "Fabled wealthy place" , "Mythical city of gold" , "Golden land imagined by the Spanish explorers of America" , "A doodler in fabled land of gold" , "One who can't give something up" .)
(Other definitions for eldorado that I've seen before include "rich land, so many thought" , "The golden land?" , "source of wealth" , "city of riches" , "wealthy location" .)