Punctuality needed to supply lines to one before strange duet (11) Over which business is contracted in a contrary manner? Uniform colour of one opening vehicle door, say? Sequence of command (5) Result of having overdone it in the heat of the moment? Unimportant person obstructing murder enquiries? In truth, war tends to frustrate (6) It's severe when the south wind goes to the east (7) Material that didn't stand out? Overnight article? A dog carriage? An agreement to carry out - for the last time? Eighteen holes are circular (5) Went by car and ripped into scooter boy (7) Truths possibly put with force (6) Like a certain gesture to a man? Batman, as seen in many films? Totters? Key workers using forks to get the pitch right? Obtains a sort of a fortified place (7) Kneeler possesses cover for the foot (7) Heaviness of the wig, perhaps? Bird that's good at golf (5) Claw of one man in a hundred (5) Make (11) Theft (7) Teach (5) 50-50 odds (5) Employ (7) Supernatural (6) Show (6) Pardon (7) Accident (5) Lariat (5) Middle-Easterner (7) Ping pong (5,6) Move slowly (5) Container (7) Sanctuary (6) All together, in music (5) Come to understand (7) Unalterable (11) Bright (11) Card game (7) Make comprehensible (7) Office worker (6) Seat (5) Defence of being elsewhere (5) Across: 1 Accolade; 5 Deaf; 9 Writ; 10 Espalier; 11 Sober; 12 Outside; 13 By all accounts; 18 Lapidary; 19 Evil; 20 Origami; 21 Tenor; 22 Yeti; 23 Agnostic. Down: 2 Cursory; 3 Oatmeal; 4 Disconcerting; 6 Edition; 7 Forceps; 8 Tattoo; 13 Balcony; 14 Appoint; 15 Lydian; 16 Useless; 17 Tripoli. Across: 1 Aperture; 5 Rang; 9 Lamb; 10 Gyration; 11 Begin; 12 Lineage; 13 Hugh Gaitskell; 18 Bear left; 19 News; 20 Tambour; 21 Argue; 22 Tory; 23 Heredity. Down: 2 Plateau; 3 Rubbish; 4 Royal Air Force; 6 Agitate; 7 Genteel; 8 Cannes; 13 Habitat; 14 Grammar; 15 Gallon; 16 Kindred; 17 Lawsuit.