The unclued lights are of a kind, verifiable in Brewer with the help of the red squares which must be read in order row by row. Ignore one apostrophe and an acute accent, elsewhere.
9 Terrible President out on a limb at heart, troubled (10)
14 Courier company raises its charges (3)
16 Make one see red – possibly green and a touch of amber! (6)
17 Author moving gently, dropping article (5)
20 Mathematician coming across wife in Milton Keynes, say (3,4)
22 Travels by plane and a Roman road to Timeless Test (7)
24 Highbrow title is affected (7)
25 Sounding like Matilda’s creator’s Indian dishes...