8 Down - Mail Carrier (6,6) Armour ???r?r
17 Across - How certain walkers make progress (12) ???????t?d?y
14 Down - Accomodating engine cover (7) H???ing
19 Down - He's rude enough to express disapproval of redhwad (4) ?o?r
16 Down - Study upset by a fellow, it's assumed (6) ???n?d