1a Without money, am I selling tobacco? (9)
???????S?
9a Climber’s course covered intro to abseiling (5)
??A?E
11a Bird that’s yellow, caught flying off (5)
???E?
20a Barbarism appears to excite physicist (9)
?????E???
7a Worker’s guild ousts communist leader from bloc (5)
No check letters in this but I’m thinking, ‘UNION’ ?