1d) Ex-president arranged game inside lorry from Detroit? (3,11)
9a) Drivers have not recalled learner with no key (6)
16d) Bishop parked badly, admitting a problem with this? (5,3)
17a) Munching this with a gin spoils good night (3,3)
20a) Originator or denizen of mews? (5,3)
Apology for no letters. All help much appreciated