Lead ore (6)

I believe the answer is:
galena
'lead ore' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for galena that I've seen before include "Len, GAA produces lead sulphide" , "Commonest ore of lead - Angle "A" (anag)" , "Angela (anag) - ore producing lead" , "Lead sulphide mineral" .)