Ore (7)
'ore' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for mineral that I've seen before include "Mined substance" , "Zinc or magnesium, say" , "Type of spring water" , "Such as 1 dn" , "Made from inorganic matter" .)
(Other definitions for scrambled eggs that I've seen before include "Dish often served at breakfast" , "Dish (on toast?)" , "Cooked dish" .)