Refuse to go on in the theatre (5)
I believe the answer is:
'theatre' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for stall that I've seen before include "Section of a stable and theatre" , "seat in church" , "Stable compartment" , "Equivocate" , "Be evasive" .)