5dn Where one may train -- Penny Lane perhaps (9,6) = Liverpool Street why?
6dn Fellows move slowly in race over rough terrain (8) = scramble why?
11ac He brought traveller's tale of standard dish from Turkey (8) ?a?d?n?r pardoner?why?
15ac and 18: Prompt Archer to collect lady's case -- it remains to be seen (4,4,4,4) = only time will tell why?
Penny Lane= a street in Liverpool Street = station
6d.Fellows = scr + amble
11a.Pardoners tale in Pilgrims Progress.
15a & 18 Prompt = on time round l(ad)y + archer = will(iam) Tell