Ancient Minoan script ( 6, 1 ) ??N?A B
Longer-term assets ( 5, 7 ) ?I?E? C?P?T?L
I think the second might be CAPITAL
One of Florence's Medici rulers (5) C?S?O
Eg, economics, politics (6, 8) ?O?I?? ?C?E?C?S
Could the second word be sciences?
"Lays of Ancient Rome" author (8) ?A?A?L?Y