9 Declared but not proved (7)
10 An epoch dating back about 20 million years (7)
11 Seventy-eight in Roman numerals (7)
12 Punches of sweetened milk and eggs (7)
13 Lacking in value (9)
15 Increase in salary (5)
16 Female (7)
19 Discarded (7)
20 Icy rain (5)
21 Seeing (9)
25 Hits hard (7)
26 Baggage (7)
28 A standard example (7)
29 A nobleman (7)
Down
1 Indulge (6)
2 Potion (6)
3 Tangelo (4)
4 Propose (6)
5 Plunged (8)
6 Composer (10)
7 Destroy (8)
8 Bedframe (8)
14 An object of infatuation (10)
16 Calamity (8)
17 Synopsis of a play (8)
18 Pace (8)
22 Earnest (6)
23 Flew too close to the sun (Greek mythology) (6)
24 A metamorphic rock (6)
27 Young lady (4)