5a Is it Angiograph please? 6d A colourless, hard mineral (7) I _ A _ _ _ _ 10a An attendant in the household of a sovereign? (8) _O_R_I_T 9d A blackish mineral that is a type of uraninite (11) P_T_H_ _ _ N _ E 14a Edible marine mollusc (7) _CA_ _ _ E 19a Tropical tree (4) C _ _ _ 18a Straight lines joining the centre of a circle or sphere - I thought it was radii Any help appreciated. Thanks very much