SOLUTION TO PUZZLE NO. 12,340

Across: 1 Proletarian; 9 Ebb; 10 Manifesto; 11 Fount; 13 Talents; 14 Eldest; 16 Ostend; 18 Version; 19 Riser; 20 Chain gang; 21 Pot; 22 Meteorology.

Down: 2 Rib; 3 Limit; 4 Tenets; 5 Raffles; 6 Absentees; 7 Self-service; 8 Considerate; 12 Undertake; 15 Science; 17 Unfair; 19 Regal; 21 Peg.