Really struggling with two on the Ripon Gazette if anyone can help:
25D Source of most bright bitter (3) (- E -)
8A Dialectical description of anywhere not here (6) (t? - N - e? -)
e? = 6D Any very brilliant scholar, inventor or operator (6) GeNIUS
t? = 4D Cast in hot metal once upon a time, now just processed (7) StEELED