1: Food product of the sea - including fish (9)
2: Auto manufacturer meeting a lieutenant in 'The Ancient Mariner'? (3,4)
3: Rushes for middle of glossed lip (5)
4: Provoke popular scoundrel. (5)
5: You audibly ram partner (3)
6: Characteristic of old door, mouse. (9)
7: Incredibly stoned, taking Intro to Math final (7)
8: Before time like an aristocrat? (5)
12: 18-across Buyers should check this run around shops (5,5)
14: Revels too bad for former President (9)
15: To live with a former partner is the final result (5)
16: Syrian mother with a part in a play (9)
18: Extraordinary oldies I greatly revere (7)
20: Word in a lexicon describing kind of number (7)
21: Small area of land for unchanging Chinese (5)
22: First bud to emerge in flower. (5)
23: Bouquet's sent up to network director? (5)
25: Consumed and digested tea (3)