Hi Susan,
No! What do you call the chap on a steam engine who shovels the coal in?
Yes, of course, STOKER; the word 'city' misled me as no doubt it was intended to do.
I have just cheered myself slightly, by finding that I had in fact written in STANDSTILL as the answer to:
13 down: Pay for whiskey producer's stoppage? (10)
This gives: A - O - T - S-
for the last remaining incomplete answer
22 across: A job, say, involved abandonment of principles (

Running through letters, APOSTASY fits.
I think that's right - and thank you for your help.