I have the 4 additional words, the 11 misprinted letters and the 30 shaded cells but am, annoyingly, stuck on 27d:
' Baud admits no prisoners (5)' - the 'u' is the misprinted letter. I have ?ESS?
Also unsure about 1a and 2d which is:
'Ance, no guid rubbish from laird playing with gues (5)' The C in 'ance' is the misprint here.
I guess it's an anagram of laird and gues minus guid? I have
??LES so LARES or ARLES?
Any help gratefully received!