1 Still (4)

 4 Deep, lustrous black (5)

 7 Large container (3)

 10 Copper carbonate (5)

 12 Capital of Ghana (5)

 13 Male child (3)

 14 Nerd (US slang) (5)

 15 Primitive form of wheat (7)

 16 Staggers (5)

 18 Short-tempered person (7)

 20 Makes sorrowful (7)

 24 Potbellied (7)

 28 Not sociable (7)

 31 Brother of Moses (5)

 32 Victory (7)

 33 Antelope (5)

 34 Roll of bank notes (slang)        (3)

 36 New Zealand aboriginal (5)

 37 Intoxicant (9)

 38 Monetary unit of Japan (3)

 39 Characteristic rhythm (5)

 40 City in NW France (4)

 2 Cleansing agent (7)

 3 Ghastly (7)

 4 Lived (7)

 5 Singleness (7)

 6 Longed for (7)

 7 Minute cavity in organic                

                                tissue (7)

 8 Two (5)

 9 Central part of a ship (8)

 11 In the direction of (2)

 17 Apiece (4)

 19 A dynasty in China (3)

 21 Too (4)

 22 one of 7 dwarves, medical                  (3)

 23 Firmness (8)

 25 Mythical creature (7)

 26 Expert in foreign exchange        (7)

 27 Worship of Yahweh (7)

 28 1920s decorative art (7)

 29 Pertaining to dreams (7)

 30 Office of an imam (7)

 32 Domesticates (5)

 35 Prefix meaning without (2)